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Full vulnerability report · 2026
CVE-2026-40622High confidence

Another 'ghost domain names' attack variant

NLnet Labs · Unbound

6.6MediumCVSS 4.0
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.14% 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 NLnet Labs Unbound 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: As exposure requiresRemediation target: Within 365 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.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Alpine, Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

7 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 1 affected package state shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · mainunboundVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.1.25.2-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · mainunboundVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.1.25.2-r0Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourceunboundVendor fix publishedDebian records a fixed source-package version for this release.1.26.1-0+deb13u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourceunboundAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourceunboundVendor fix publishedDebian records a fixed source-package version for this release.1.25.2-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourceunboundVendor fix publishedDebian records a fixed source-package version for this release.1.25.2-1Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiveunboundVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.1.19.2-1ubuntu3.8Canonical Ubuntu Security ↗Source updated 5 Oct 2026
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-2026-40622 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityunbound: Unbound: Cache manipulation via 'ghost domain names' attack
11 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • unbound as a component of Red Hat Enterprise Linux 6
  • unbound-devel as a component of Red Hat Enterprise Linux 6
  • unbound-libs as a component of Red Hat Enterprise Linux 6
  • unbound-python as a component of Red Hat Enterprise Linux 6
  • unbound.src as a component of Red Hat Enterprise Linux 6
  • unbound as a component of Red Hat Enterprise Linux 7
  • unbound-devel as a component of Red Hat Enterprise Linux 7
  • unbound-libs as a component of Red Hat Enterprise Linux 7
  • unbound-python as a component of Red Hat Enterprise Linux 7
  • unbound.src as a component of Red Hat Enterprise Linux 7
  • openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4
Summary
A flaw was found in NLnet Labs Unbound. A remote attacker, by controlling a malicious domain (a "ghost zone") and querying a vulnerable Unbound server, could exploit a vulnerability related to "ghost domain names" attacks. This could allow the attacker to overwrite cached Name Server (NS) records, extending the "ghost domain window" by up to one cached Time To Live (TTL) value. This manipulation could lead to cache poisoning, potentially causing the Unbound server to serve incorrect or malicious DNS information.
Remediation
For OpenShift Container Platform 4.22 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html/release_notes/ You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags. The sha values for the release are as follows: (For x86_64 architecture) The image digest is sha256:171952b3f8295184cbc98cf89d4aed20e0fbfc06cc95e854d53e8a8a56156490 (For s390x architecture) The image digest is sha256:5d4c79493b883693cfff7222309ece89637bf606f56065d8b5c1ac26acdd2fcf (For ppc64le architecture) The image digest is sha256:7ecf7ab1db0964ab5841c89b48ec6272fe84d1428adde038d59078557752a30e (For aarch64 architecture) The image digest is sha256:4cfd7378ff6b2e188ce37a04cdca2bcf3638ab397f52fb64f92af8cb81859a5f All OpenShift Container Platform 4.22 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html-single/updating_clusters/index#updating-cluster-cli.
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-2026-31080

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

NLnet Labs Unbound 1.16.2 up to and including version 1.25.0 has a vulnerability of the 'ghost domain names' family of attacks that could extend the ghost domain window by up to one cached TTL configured value. Similar to other 'ghost domain names' attacks, an adversary needs to control a (ghost) zone and be able to query a vulnerable Unbound. A single client NS query can cause Unbound to overwrite the cached expired parent-side referral NS rrset with the child-side apex NS rrset and essentially extend the ghost domain window by up to one cached TTL configured value ('cache-max-ttl'). In configurations where 'harden-referral-path: yes' is used (non-default configuration), no client NS query is required since Unbound implicitly performs that query. Unbound 1.25.1 contains a patch with a fix that does not allow extension of TTLs for (parent) NS records regardless of their trust.

What

NLnet Labs Unbound 1.16.2 up to and including version 1.25.0 has a vulnerability of the 'ghost domain names' family of attacks that could extend the ghost domain window by up to one cached TTL configured value. Similar to other 'ghost domain names' attacks, an adversary needs to control a (ghost) zone and be able to query a vulnerable Unbound. A single client NS query can cause Unbound to overwrite the cached expired parent-side referral NS rrset with the child-side apex NS rrset and essentially extend the ghost domain window by up to one cached TTL configured value ('cache-max-ttl'). In configurations where 'harden-referral-path: yes' is used (non-default configuration), no client NS query is required since Unbound implicitly performs that query. Unbound 1.25.1 contains a patch with a fix that does not allow extension of TTLs for (parent) NS records regardless of their trust.

Why

The product does not properly verify that the source of data or communication is valid.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

NLnet Labs Unbound 1.16.2 up to and including version 1.25.0 has a vulnerability of the 'ghost domain names' family of attacks that could extend the ghost domain window by up to one cached TTL configured value. Similar to other 'ghost domain names' attacks, an adversary needs to control a (ghost) zone and be able to query a vulnerable Unbound. A single client NS query can cause Unbound to overwrite the cached expired parent-side referral NS rrset with the child-side apex NS rrset and essentially extend the ghost domain window by up to one cached TTL configured value ('cache-max-ttl'). In configurations where 'harden-referral-path: yes' is used (non-default configuration), no client NS query is required since Unbound implicitly performs that query. Unbound 1.25.1 contains a patch with a fix that does not allow extension of TTLs for (parent) NS records regardless of their trust.

Why

The product does not properly verify that the source of data or communication is valid.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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 → Origin Validation Error → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-346 ↗

CWE-346: Origin Validation Error. The product does not properly verify that the source of data or communication is valid.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber

Common Vulnerability Scoring System 4.0: 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.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCNoneVulnerable-system confidentiality: No direct loss is represented by this metric.VIHighVulnerable-system integrity: A successful attack can cause a major loss.VANoneVulnerable-system availability: No direct loss is represented by this metric.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-346
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-3038Meinberg LANTIME: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Meinberg LANTIME ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, sensible Informationen offenzulegen, Daten zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-2455Oracle Solaris Drittanbieterkomponenten: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Drittanbietern in Oracle Solaris ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-1599Unbound: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Unbound ausnutzen, um einen Denial of Service Zustand herbeizuführen, um möglicherweise Code auszuführen und um nicht näher spezifizierte Auswirkungen zu verursachen.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-017155NLnet Labsのunboundにおける同一生成元ポリシー違反に関する脆弱性

NLnet LabsのUnboundバージョン1.16.2から1.25.0まで（1.25.0を含む）には、「ゴーストドメイン名」攻撃の一種である脆弱性が存在し、最大でキャッシュされたTTL設定値分までゴーストドメインの窓口が延長される可能性があります。他の「ゴーストドメイン名」攻撃と同様に、攻撃者は(ゴースト)ゾーンを制御し、脆弱なUnboundにクエリを送信する必要があります。単一のクライアントNSクエリにより、Unboundはキャッシュされた期限切れの親側リファーラルNS rrsetを子側のエーペックスNS rrsetで上書きし、実質的にゴーストドメインの窓口を最大でキャッシュされたTTL設定値（「cache-max-ttl」）分延長します。'harden-referral-path: yes'（非デフォルト設定）が使用されている設定では、Unboundが暗黙的にクエリを実行するため、クライアントNSクエリは不要となります。Unbound 1.25.1には、信頼性に関わらず(parent) NSレコードのTTLを延長しない修正パッチが含まれています。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-025346NLnet Labsのunboundにおける有効期限後または解放後のリソースの操作に関する脆弱性

NLnet LabsのUnboundバージョン1.16.2から1.25.1まで（1.25.1を含む）において、「ゴーストドメイン名」攻撃ファミリーのCVE-2026-40622と類似した脆弱性が発見されました。この脆弱性は、A/AAAAグルーレコードに設定されたキャッシュTTLの最大値分だけゴーストドメインの窓を拡張させる可能性があります。他の「ゴーストドメイン名」攻撃と同様に、攻撃者は（ゴースト）ゾーンを制御し、脆弱なUnboundにクエリを送信できる必要があります。単一のクライアントによるA/AAAAクエリで、Unboundはキャッシュされた期限切れの親側グルーrrsetを上書きし、実質的に「cache-max-ttl」で設定されたキャッシュTTL分だけゴーストドメインの窓を拡張します。'harden-referral-path: yes'（デフォルトではない設定）が使用されている場合、クライアントのクエリは不要であり、Unboundが暗黙的にそのクエリを実行します。これは、NSクエリのみを対象としたCVE-2026-40622のバリエーションとなります。

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.
Fix availability varies by product
Affected
Fixed
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
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 20 May 2026 · Last source change 20 May 2026, 12:12 UTC · CWE-346 · Origin Validation Error

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-2026-31080
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCISA ADP
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. Affected versionsThe structured affected or fixed version information changed.
    Before
    1.16.2 < 1.25.1 · 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
    1.16.2 < 1.25.1 · Fixed: For OpenShift Container Platform 4.22 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html/release_notes/ You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags. The sha values for the release are as follows: (For x86_64 architecture) The image digest is sha256:171952b3f8295184cbc98cf89d4aed20e0fbfc06cc95e854d53e8a8a56156490 (For s390x architecture) The image digest is sha256:5d4c79493b883693cfff7222309ece89637bf606f56065d8b5c1ac26acdd2fcf (For ppc64le architecture) The image digest is sha256:7ecf7ab1db0964ab5841c89b48ec6272fe84d1428adde038d59078557752a30e (For aarch64 architecture) The image digest is sha256:4cfd7378ff6b2e188ce37a04cdca2bcf3638ab397f52fb64f92af8cb81859a5f All OpenShift Container Platform 4.22 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html-single/updating_clusters/index#updating-cluster-cli.
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: rhcos-aarch64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-ppc64le-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-s390x-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-x86_64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; python3-unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 157 more
    After
    unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4 · Fixed: rhcos-aarch64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-ppc64le-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-s390x-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-x86_64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; python3-unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 157 more
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    rhcos as a component of Red Hat OpenShift Container Platform 4 · Fixed: rhcos-aarch64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-ppc64le-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-s390x-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-x86_64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; python3-unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 157 more
    After
    Fixed: rhcos-aarch64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-ppc64le-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-s390x-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-x86_64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; python3-unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 157 more
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: rhcos-aarch64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-ppc64le-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-s390x-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-x86_64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; python3-unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 157 more
    After
    rhcos as a component of Red Hat OpenShift Container Platform 4 · Fixed: rhcos-aarch64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-ppc64le-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-s390x-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-x86_64-4.22.9.8.202608130832-0 as a component of Red Hat OpenShift Container Platform 4.22; python3-unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 157 more
    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-2026-31080↗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-2026-40622 · cve.blacktree.nl