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Full vulnerability report · 2026
CVE-2026-66808High confidence

Microsoft SharePoint Server Remote Code Execution Vulnerability

Microsoft · Microsoft SharePoint Enterprise Server 2016

8.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 2.04% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Microsoft SharePoint Enterprise Server 2016 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-66808 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityhypershift-addon-operator: Unsanitized hub ConfigMap data passed as CLI arguments to privileged install Job (Argument Injection)
24 fixed

The vendor explicitly identifies these products or versions as containing the fix.

  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:7f0864219c51068233e462b4aa9c2b60f7d114fe04e56944c5e1eed4c2ac4d4d_ppc64le as a component of multicluster engine for Kubernetes 2.17
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a48cc4475cdb9b0127af3754a98f403e9ee78bbaedaef09a3ade340177222828_arm64 as a component of multicluster engine for Kubernetes 2.17
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f62822c91edbb004580b6e59b7b6553c9593d19829f26a85c3e870e057a39a04_s390x as a component of multicluster engine for Kubernetes 2.17
  • registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f6c5086b70a6af380bc7ce2e232a5cd8a2b913009203eab2ce6d26cb02c0af9c_amd64 as a component of multicluster engine for Kubernetes 2.17
Summary
A flaw was found in hypershift-addon-operator. A hub-cluster administrator with write access to the hypershift-operator-install-flags ConfigMap can inject malicious command-line arguments into the privileged install Job. This vulnerability, known as argument injection, allows the attacker to pull arbitrary container images and gain full administrative control (cluster-admin code execution) on managed spoke clusters.
Remediation
For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-56750

No EUVD known-exploited evidence

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

What

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Why

Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

What

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Why

Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Deserialization of Untrusted Data → execute code or commands in the affected security context
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-502 ↗

CWE-502: Deserialization of Untrusted Data. The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkRemote code executionCWE-502
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-56750Official EUVD mapping

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2762Microsoft Office Produkte: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Office Produkte ausnutzen, um Dateien zu manipulieren, um seine Privilegien zu erhöhen, um Informationen offenzulegen, um einen Cross-Site Scripting Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1004Multiples vulnérabilités dans les produits Microsoft

ulletin de sécurité Microsoft CVE-2026-65675 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-65680 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-65767 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-65768 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-65769 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-65811 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-65813 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-65815 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-66301 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-66805 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-66808 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-68821 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-69278 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-69306 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-69320 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-70306 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-70321 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-70324 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-70326 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-70335 du 11 août 2026 Bulletin de sécurité Microsoft CVE-2026-70336 du 11 août 2026 Bulletin de s

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-23Aggiornamenti Mensili Microsoft

nuova finestra - - CVE-2026-68803 : apre una nuova finestra - - CVE-2026-68802 : apre una nuova finestra - - CVE-2026-68801 : apre una nuova finestra - - CVE-2026-68800 : apre una nuova finestra - - CVE-2026-68799 : apre una nuova finestra - - CVE-2026-68798 : apre una nuova finestra - - CVE-2026-68797 : apre una nuova finestra - - CVE-2026-68796 : apre una nuova finestra - - CVE-2026-68795 : apre una nuova finestra - - CVE-2026-68794 : apre una nuova finestra - - CVE-2026-68793 : apre una nuova finestra - - CVE-2026-68792 : apre una nuova finestra - - CVE-2026-66810 : apre una nuova finestra - - CVE-2026-66809 : apre una nuova finestra - - CVE-2026-66808 : apre una nuova finestra - - CVE-2026-66807 : apre una nuova finestra - - CVE-2026-66806 : apre una nuova finestra - - CVE-2026-66805 : apre una nuova finestra - - CVE-2026-66804 : apre una nuova finestra - - CVE-2026-66802 : apre una nuova finestra - - CVE-2026-66799 : apre una nuova finestra - - CVE-2026-66301 : apre una nuova finestra - - CVE-2026-65815 : apre una nuova finestra - - CVE-2026-65814 : apre una nuova finestra - - CVE-2026-65813 : apre una nuova finestra - - CVE-2026-65811 : apre una nuova finestra - - CVE-2026-65810 : apre una nuova finestra - - CVE-2026-65807 : apre una nuova finestra - - CVE-2026-65806 : apre una nuova fi

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-028192マイクロソフトのMicrosoft SharePoint Serverにおける信頼できないデータのデシリアライゼーションに関する脆弱性

Microsoft Office SharePointにおける信頼されていないデータの逆シリアル化の脆弱性により、認証された攻撃者がネットワーク経由でコードを実行できる可能性があります。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6916MS 8월 보안 위협에 따른 정기 보안 업데이트 권고

ses) | CVE-2026-66301 | Microsoft Dynamics 365(온-프레미스) 정보 공개 취약성 | | Windows Key Guard | CVE-2026-66799 | Windows Key Guard 권한 상승 취약성 | | Microsoft Azure Attestation service and Device Health Attestation Service | CVE-2026-66802 | Windows 장치 상태 증명(DHA) 원격 코드 실행 취약성 | | Windows Cross Device Service | CVE-2026-66804 | Microsoft Windows Cross Device Service 권한 상승 취약성 | | Microsoft Office SharePoint | CVE-2026-66805 | Microsoft SharePoint Server 원격 코드 실행 취약성 | | Microsoft Office Word | CVE-2026-66806 | Microsoft Office Word 정보 공개 취약성 | | Microsoft Office | CVE-2026-66807 | Microsoft Office 그래픽 구성 요소 원격 코드 실행 취약성 | | Microsoft Office SharePoint | CVE-2026-66808 | Microsoft SharePoint Server 원격 코드 실행 취약성 | | Microsoft Office | CVE-2026-66809 | Microsoft Office 그래픽 구성 요소 정보 유출 취약성 | | Microsoft Office Word | CVE-2026-66810 | Microsoft Office Word 정보 공개 취약성 | | Microsoft Office | CVE-2026-68792 | Microsoft Office 권한 상승 취약성 | | Microsoft Office Excel | CVE-2026-68793 | Microsoft Excel 원격 코드 실행 취약성 | | Microsoft Office Excel | CVE-2026-68794 | Microsoft Excel 원격 코드 실행 취약성 | | Microsoft Office Excel | CVE-2026-68795 | Microsoft Excel 원격 코드 실행 취약성 | | Microsoft Office Excel | CVE-2026-68796 | Microsoft Excel 원격 코드 실행 취약성 | | Microsoft Office Excel | CVE-2026-68797 | Microsoft Excel 정보 유출 취약성 | | Microsoft

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0286Kwetsbaarheden verholpen in Microsoft Office

Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de categorieën schade zoals beschreven in onderstaande tabel. Voor succesvol misbruik moet de kwaadwillende het slachtoffer misleiden een malafide bestand te openen of link te volgen. In onderstaande tabel wordt de kwetsbaarheid met kenmerk **CVE-2026-65667** genoemd met een CVSS score van 10.0. Ook worden de kwetsbaarheden met kenmerk **CVE-2026-50515, CVE-2026-62896** en **CVE-2026-70332** genoemd, elk met een CVSS score van 9 en hoger. Deze kwetsbaarheden zijn echter reeds centraal verholpen door microsoft en slechts opgenomen ter informatie. Hiervoor zijn geen acties vereist. De kwetsbaarheid met kenmerk **CVE-2026-70306** heeft ook een CVSS score hoger dan 9 en vereist **wel** actie. Deze kwetsbaarheid bevindt zich in Sharepoint en stelt een kwaadwillende in staat om middels een Cross-site-scripting-aanval willekeurige code uit te voeren in de context van het slachtoffer. **UPDATE**: Onderzoekers melden actief misbruik te hebben waargenomen van de kwetsbaarheid met kenmerk CVE-2026-63520. Deze bevindt zich in SharePoint en stelt een kwaadwillende in staat om willekeurige code uit te voeren op het kwetsbare systeem. Met name Sharepoint installaties die publiek toegankelijk zijn lopen hierdoor hoog risico op actief misbruik. ``` Microsoft OneDrive: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-65680 | 6.70 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure SQL Managed Instance: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-62836 | 8.70 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Microsoft Teams for Android: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-65768 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-65767 | 8.80 | Voordoen als andere gebruiker | |----------------|------|-------------------------------------| Microsoft Teams: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-62896 | 9.60 | Verkrijgen van verhoogde rechten | | CVE-2026-62918 | 7.50 | Voordoen als andere gebruiker | | CVE-2026-65667 | 10.0 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Microsoft Office Word: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-63518 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63521 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70311 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-70310 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70319 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-58651 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63525 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63528 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-63527 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63530 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-63531 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-64905 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64907 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64915 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64917 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-66806 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-66810 | 5.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Microsoft Office: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-63513 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63515 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63517 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-63519 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-65657 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-65656 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-65661 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-65664 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68792 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-70315 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70314 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70317 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70323 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-62842 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-63524 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-63526 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63529 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-63532 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-63533 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64898 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64899 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-64903 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64904 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64909 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64910 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64911 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-66807 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-66809 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70130 | 8.40 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Microsoft Office PowerPoint: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-68809 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70312 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70313 | 7.80 | Toegang tot gevoelige gegevens | | CVE-2026-70316 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70325 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70320 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70322 | 5.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Microsoft Office Excel: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-65807 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-68793 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68794 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68795 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68796 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68800 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68802 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-68807 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68806 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68808 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-68810 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68811 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68813 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-68815 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68816 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-70318 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-70327 | 6.50 | Toegang tot gevoelige gegevens | | CVE-2026-70328 | 6.50 | Toegang tot gevoelige gegevens | | CVE-2026-68797 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-68798 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68799 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-68801 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68803 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68804 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68805 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68812 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68814 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-68817 | 7.80 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Microsoft Office Outlook: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-70329 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-62882 | 4.30 | Voordoen als andere gebruiker | |----------------|------|-------------------------------------| Azure Service Bus: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-50515 | 9.90 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Microsoft Office Access: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-64906 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64912 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64908 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64914 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64920 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-64919 | 7.80 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Microsoft Teams Mobile: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-65769 | 6.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Microsoft Office SharePoint: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-57105 | 8.00 | Voordoen als andere gebruiker | | CVE-2026-62829 | 4.60 | Voordoen als andere gebruiker | | CVE-2026-62827 | 8.80 | Verkrijgen van verhoogde rechten | | CVE-2026-62837 | 6.50 | Toegang tot gevoelige gegevens | | CVE-2026-63514 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-63512 | 6.50 | Manipulatie van gegevens | | CVE-2026-63516 | 6.50 | Voordoen als andere gebruiker | | CVE-2026-63520 | 8.10 | Uitvoeren van willekeurige code | | CVE-2026-64922 | 4.60 | Voordoen als andere gebruiker | | CVE-2026-65658 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-65663 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-65660 | 6.50 | Voordoen als andere gebruiker | | CVE-2026-65665 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-70321 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-70324 | 8.80 | Verkrijgen van verhoogde rechten | | CVE-2026-70355 | 7.30 | Verkrijgen van verhoogde rechten | | CVE-2026-64897 | 4.60 | Voordoen als andere gebruiker | | CVE-2026-64900 | 4.60 | Voordoen als andere gebruiker | | CVE-2026-64902 | 4.60 | Voordoen als andere gebruiker | | CVE-2026-64901 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-64916 | 4.60 | Voordoen als andere gebruiker | | CVE-2026-64921 | 8.80 | Verkrijgen van verhoogde rechten | | CVE-2026-66805 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-66808 | 8.80 | Uitvoeren van willekeurige code | | CVE-2026-70306 | 9.30 | Voordoen als andere gebruiker | | CVE-2026-70326 | 8.80 | Verkrijgen van verhoogde rechten | | CVE-2026-70332 | 9.60 | Voordoen als andere gebruiker | | CVE-2026-58639 | 6.50 | Voordoen als andere gebruiker | | CVE-2026-62839 | 6.50 | Voordoen als andere gebruiker | | CVE-2026-62917 | 4.60 | Voordoen als andere gebruiker | |----------------|------|-------------------------------------| ```

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 11 Aug 2026 · Last source change 29 Sept 2026, 20:22 UTC · CWE-502 · Deserialization of Untrusted Data

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-56750
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceOther authority
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: added remediation: msrc.microsoft.com/CVE-2026-66808; removed remediation: access.redhat.com/CVE-2026-66808.
    Before
    patch: msrc.microsoft.com/CVE-2026-66808 · remediation: access.redhat.com/CVE-2026-66808
    After
    patch: msrc.microsoft.com/CVE-2026-66808 · remediation: msrc.microsoft.com/CVE-2026-66808
    secure@microsoft.com ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
    After
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: added remediation: msrc.microsoft.com/CVE-2026-66808; removed remediation: access.redhat.com/CVE-2026-66808.
    Before
    patch: msrc.microsoft.com/CVE-2026-66808 · remediation: access.redhat.com/CVE-2026-66808
    After
    patch: msrc.microsoft.com/CVE-2026-66808 · remediation: msrc.microsoft.com/CVE-2026-66808
    secure@microsoft.com ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
    After
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
    Red Hat Product Security ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/clusters/cluster_mce_overview#mce-install-intro
    After
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
    Red Hat Product Security ↗
  7. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-66808 to remediation: access.redhat.com/CVE-2026-66808.
    Before
    remediation: access.redhat.com/CVE-2026-66808
    After
    remediation: access.redhat.com/CVE-2026-66808
    Red Hat Product Security ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:7f0864219c51068233e462b4aa9c2b60f7d114fe04e56944c5e1eed4c2ac4d4d_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a48cc4475cdb9b0127af3754a98f403e9ee78bbaedaef09a3ade340177222828_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f62822c91edbb004580b6e59b7b6553c9593d19829f26a85c3e870e057a39a04_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f6c5086b70a6af380bc7ce2e232a5cd8a2b913009203eab2ce6d26cb02c0af9c_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:305f8fc32782c433c1a7687b57131b71b71e33ef6df2ecc87130bf3fca709ff6_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:5f1410e6947e65ea9f374027b3ccceb3625a03a1256972c3211ed41d108a658a_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:891e54f7df9f621e566d99b67b4d3946636ab91736405cfbd6ec06f20483a680_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a6659cae93e54344de37ccbb150fa43e4e1fe572b9f970d97889e4355076d585_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:230cc7087c4c9e0d6852804021a149b88284267def7d85a1dc002fcc7a19855a_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:3ca2b5cac65a2e578e596cb066c5874bafc5dc1e6a4ead83af6569dcd97c90b7_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:4f9bd5d9c43f3ae73fe5c5333d2c2c20cafbbc0a20f1d755a15497bfbe728c8a_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:fe72a4ff3d41adfc8ebb74d07560090a26930306b6ce55ba887f2cabbb0f2e7b_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:280b8f06816f3bd59f34ff221382694728f79aafe1f768570703ae80abd268a6_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:2e3a7b0f0a174768201972703aa27a625a8aae60defbd4585dfbd598f8d435a8_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:58dbe1b1f57178ebcc7129dfef9bcb7997af2a50de0fd3aeb36457cf7be62730_amd64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8aaf85869e949444f47df7129dad0c57aeddccb30f9d1352d4069e24f9bd6319_arm64 as a component of multicluster engine for Kubernetes 2.9
    After
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:7f0864219c51068233e462b4aa9c2b60f7d114fe04e56944c5e1eed4c2ac4d4d_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a48cc4475cdb9b0127af3754a98f403e9ee78bbaedaef09a3ade340177222828_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f62822c91edbb004580b6e59b7b6553c9593d19829f26a85c3e870e057a39a04_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f6c5086b70a6af380bc7ce2e232a5cd8a2b913009203eab2ce6d26cb02c0af9c_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:305f8fc32782c433c1a7687b57131b71b71e33ef6df2ecc87130bf3fca709ff6_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:5f1410e6947e65ea9f374027b3ccceb3625a03a1256972c3211ed41d108a658a_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:891e54f7df9f621e566d99b67b4d3946636ab91736405cfbd6ec06f20483a680_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a6659cae93e54344de37ccbb150fa43e4e1fe572b9f970d97889e4355076d585_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:230cc7087c4c9e0d6852804021a149b88284267def7d85a1dc002fcc7a19855a_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:3ca2b5cac65a2e578e596cb066c5874bafc5dc1e6a4ead83af6569dcd97c90b7_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:4f9bd5d9c43f3ae73fe5c5333d2c2c20cafbbc0a20f1d755a15497bfbe728c8a_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:fe72a4ff3d41adfc8ebb74d07560090a26930306b6ce55ba887f2cabbb0f2e7b_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:280b8f06816f3bd59f34ff221382694728f79aafe1f768570703ae80abd268a6_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:2e3a7b0f0a174768201972703aa27a625a8aae60defbd4585dfbd598f8d435a8_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:58dbe1b1f57178ebcc7129dfef9bcb7997af2a50de0fd3aeb36457cf7be62730_amd64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8aaf85869e949444f47df7129dad0c57aeddccb30f9d1352d4069e24f9bd6319_arm64 as a component of multicluster engine for Kubernetes 2.9
    Red Hat Product Security ↗
  9. Vendor guidanceAuthoritative vendor guidance changed: added remediation: msrc.microsoft.com/CVE-2026-66808; removed remediation: access.redhat.com/CVE-2026-66808.
    Before
    patch: msrc.microsoft.com/CVE-2026-66808 · remediation: access.redhat.com/CVE-2026-66808
    After
    patch: msrc.microsoft.com/CVE-2026-66808 · remediation: msrc.microsoft.com/CVE-2026-66808
    secure@microsoft.com ↗
  10. Affected versionsThe structured affected or fixed version information changed.
    Before
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/clusters/cluster_mce_overview#mce-install-intro
    After
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  11. Affected versionsThe structured affected or fixed version information changed.
    Before
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/clusters/cluster_mce_overview#mce-install-intro
    Red Hat Product Security ↗
  12. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-66808 to remediation: access.redhat.com/CVE-2026-66808.
    Before
    remediation: access.redhat.com/CVE-2026-66808
    After
    remediation: access.redhat.com/CVE-2026-66808
    Red Hat Product Security ↗
  13. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:7f0864219c51068233e462b4aa9c2b60f7d114fe04e56944c5e1eed4c2ac4d4d_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a48cc4475cdb9b0127af3754a98f403e9ee78bbaedaef09a3ade340177222828_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f62822c91edbb004580b6e59b7b6553c9593d19829f26a85c3e870e057a39a04_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f6c5086b70a6af380bc7ce2e232a5cd8a2b913009203eab2ce6d26cb02c0af9c_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:305f8fc32782c433c1a7687b57131b71b71e33ef6df2ecc87130bf3fca709ff6_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:5f1410e6947e65ea9f374027b3ccceb3625a03a1256972c3211ed41d108a658a_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:891e54f7df9f621e566d99b67b4d3946636ab91736405cfbd6ec06f20483a680_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a6659cae93e54344de37ccbb150fa43e4e1fe572b9f970d97889e4355076d585_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:230cc7087c4c9e0d6852804021a149b88284267def7d85a1dc002fcc7a19855a_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:3ca2b5cac65a2e578e596cb066c5874bafc5dc1e6a4ead83af6569dcd97c90b7_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:4f9bd5d9c43f3ae73fe5c5333d2c2c20cafbbc0a20f1d755a15497bfbe728c8a_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:fe72a4ff3d41adfc8ebb74d07560090a26930306b6ce55ba887f2cabbb0f2e7b_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:280b8f06816f3bd59f34ff221382694728f79aafe1f768570703ae80abd268a6_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:2e3a7b0f0a174768201972703aa27a625a8aae60defbd4585dfbd598f8d435a8_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:58dbe1b1f57178ebcc7129dfef9bcb7997af2a50de0fd3aeb36457cf7be62730_amd64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8aaf85869e949444f47df7129dad0c57aeddccb30f9d1352d4069e24f9bd6319_arm64 as a component of multicluster engine for Kubernetes 2.9
    After
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:7f0864219c51068233e462b4aa9c2b60f7d114fe04e56944c5e1eed4c2ac4d4d_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a48cc4475cdb9b0127af3754a98f403e9ee78bbaedaef09a3ade340177222828_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f62822c91edbb004580b6e59b7b6553c9593d19829f26a85c3e870e057a39a04_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f6c5086b70a6af380bc7ce2e232a5cd8a2b913009203eab2ce6d26cb02c0af9c_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:305f8fc32782c433c1a7687b57131b71b71e33ef6df2ecc87130bf3fca709ff6_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:5f1410e6947e65ea9f374027b3ccceb3625a03a1256972c3211ed41d108a658a_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:891e54f7df9f621e566d99b67b4d3946636ab91736405cfbd6ec06f20483a680_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a6659cae93e54344de37ccbb150fa43e4e1fe572b9f970d97889e4355076d585_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:230cc7087c4c9e0d6852804021a149b88284267def7d85a1dc002fcc7a19855a_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:3ca2b5cac65a2e578e596cb066c5874bafc5dc1e6a4ead83af6569dcd97c90b7_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:4f9bd5d9c43f3ae73fe5c5333d2c2c20cafbbc0a20f1d755a15497bfbe728c8a_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:fe72a4ff3d41adfc8ebb74d07560090a26930306b6ce55ba887f2cabbb0f2e7b_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:280b8f06816f3bd59f34ff221382694728f79aafe1f768570703ae80abd268a6_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:2e3a7b0f0a174768201972703aa27a625a8aae60defbd4585dfbd598f8d435a8_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:58dbe1b1f57178ebcc7129dfef9bcb7997af2a50de0fd3aeb36457cf7be62730_amd64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8aaf85869e949444f47df7129dad0c57aeddccb30f9d1352d4069e24f9bd6319_arm64 as a component of multicluster engine for Kubernetes 2.9
    Red Hat Product Security ↗
  14. Affected versionsThe structured affected or fixed version information changed.
    Before
    16.0.0 < 16.0.5565.1001; 16.0.0 < 16.0.10417.20198; 16.0.0 < 16.0.19725.20522 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5565.1001; Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10417.20198; Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.19725.20522 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  15. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11.0; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11.0; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11.0; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11.0
    After
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:7f0864219c51068233e462b4aa9c2b60f7d114fe04e56944c5e1eed4c2ac4d4d_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a48cc4475cdb9b0127af3754a98f403e9ee78bbaedaef09a3ade340177222828_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f62822c91edbb004580b6e59b7b6553c9593d19829f26a85c3e870e057a39a04_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f6c5086b70a6af380bc7ce2e232a5cd8a2b913009203eab2ce6d26cb02c0af9c_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:305f8fc32782c433c1a7687b57131b71b71e33ef6df2ecc87130bf3fca709ff6_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:5f1410e6947e65ea9f374027b3ccceb3625a03a1256972c3211ed41d108a658a_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:891e54f7df9f621e566d99b67b4d3946636ab91736405cfbd6ec06f20483a680_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a6659cae93e54344de37ccbb150fa43e4e1fe572b9f970d97889e4355076d585_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:230cc7087c4c9e0d6852804021a149b88284267def7d85a1dc002fcc7a19855a_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:3ca2b5cac65a2e578e596cb066c5874bafc5dc1e6a4ead83af6569dcd97c90b7_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:4f9bd5d9c43f3ae73fe5c5333d2c2c20cafbbc0a20f1d755a15497bfbe728c8a_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:fe72a4ff3d41adfc8ebb74d07560090a26930306b6ce55ba887f2cabbb0f2e7b_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:280b8f06816f3bd59f34ff221382694728f79aafe1f768570703ae80abd268a6_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:2e3a7b0f0a174768201972703aa27a625a8aae60defbd4585dfbd598f8d435a8_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:58dbe1b1f57178ebcc7129dfef9bcb7997af2a50de0fd3aeb36457cf7be62730_amd64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8aaf85869e949444f47df7129dad0c57aeddccb30f9d1352d4069e24f9bd6319_arm64 as a component of multicluster engine for Kubernetes 2.9
    Red Hat Product Security ↗
  16. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-66808 to remediation: access.redhat.com/CVE-2026-66808.
    Before
    remediation: access.redhat.com/CVE-2026-66808
    After
    remediation: access.redhat.com/CVE-2026-66808
    Red Hat Product Security ↗
  17. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.1
    After
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11.0; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11.0; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11.0; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11.0
    Red Hat Product Security ↗
  18. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-66808 to remediation: access.redhat.com/CVE-2026-66808.
    Before
    remediation: access.redhat.com/CVE-2026-66808
    After
    remediation: access.redhat.com/CVE-2026-66808
    Red Hat Product Security ↗
  19. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11
    After
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.1
    Red Hat Product Security ↗
  20. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.1
    After
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:31b448d2a414dfd39327dad7e554901e5afb5f86fc683be7efc49e802a5ad8f7_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8d69fe36725afd3ca0bf797ea434f7d77890627691aa6e43bc09065fe0825687_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:9bd4ebda1ac35bbbca4ad61e11b2805a9302edbdd5ca119fc459a63ebb3d0bb0_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:a7c807d050f3189f7d35e53ba608220896439248f8d65bea873f45b98d0f5bdb_s390x as a component of multicluster engine for Kubernetes 2.11
    Red Hat Product Security ↗
  21. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.10
    After
    Fixed: registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:0b0b29204005dc38bf4c7fbdf7868ad17e6f117d3e47e747a8f0e13f7608b8bf_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:74803eed838fda05e9650689ed004375d8f51bae3b703f3c2656db0fc037e9c3_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:8db536f3811724cf5ebc1849afd7f0a8b0afb77f848e9147cfa6d9433a2ce7c6_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/hypershift-addon-rhel9-operator@sha256:f1bcdf56731659bbb6a1bd8114924dd7189c11080179f942971d6eb0d2477ecc_s390x as a component of multicluster engine for Kubernetes 2.1
    Red Hat Product Security ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-56750↗Red Hat Product Security security advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-66808 · cve.blacktree.nl