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Full vulnerability report · 2026
CVE-2026-71577High confidence

Multicluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migration

Red Hat · Multicluster Global Hub 1.4.9

Official source article: Red Hat RHSA-2026:67516 ↗. Check the applicable product and release in the original source.

6.3MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
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.
  • EPSS is 0.42% 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 Red Hat Multicluster Global Hub 1.4.9 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.

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-2026-71577 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitymulticluster-global-hub: multicluster-global-hub: Spec-topic Read ACL leaks bootstrap kubeconfigs to all managed hubs during migration
24 fixed

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

  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:15bea39bf05f2c097d77771b481e6ddd20cedb4a4e59e49db004b7582294e61e_ppc64le as a component of Multicluster Global Hub 1.4.9
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:1935d279f46862eeb512bb4157e482832359effd86c4b455d9653c4637a5e05c_amd64 as a component of Multicluster Global Hub 1.4.9
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:3bfcf80b7b5ec26d710e9d792dde397dbf064dffe76acb67085b4f34ba2ca653_s390x as a component of Multicluster Global Hub 1.4.9
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:f8e71dc10b51ac2173107505522bf2943a451ad22a3856d79da00cd3c22c48d8_arm64 as a component of Multicluster Global Hub 1.4.9
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:75b73e6b5eff1d02d994db5f76dfedbf7fb52f99bbd9defcd1331bfe11813446_amd64 as a component of Multicluster Global Hub 1.5.8
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:afb6a321ed95f17754bd6a2037d8c44dfbd53cf501c20fc85afcf7aaeaad53df_arm64 as a component of Multicluster Global Hub 1.5.8
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:c84ba4fbcfe5256c92f28c7e21b17e5b6c92a7be07550486bcbb6ab3d558970b_s390x as a component of Multicluster Global Hub 1.5.8
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cc2eba544a7bbd2e0e553c4047d4fdafc3f8df62400ae0564503b60a0ef1c6c9_ppc64le as a component of Multicluster Global Hub 1.5.8
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:06c38fd194d64956809abb9acc3614419cdcb26a3f48636a179ba62508e92c98_amd64 as a component of Multicluster Global Hub 1.6.6
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:69989db7b777af7fedc5ddb9e2d8719316ca5564f13549f5e1ac3e2cb0fc7ce5_ppc64le as a component of Multicluster Global Hub 1.6.6
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:74a69caabe14c5b803ead049df8941b3ae60edb474da24fc91aaf8c95fa05154_s390x as a component of Multicluster Global Hub 1.6.6
  • registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:983f5f54e2505e1a8d457f45d8caab5aefd70ffebeea9f9f071dd8919aa9c5f2_arm64 as a component of Multicluster Global Hub 1.6.6
Summary
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.
Remediation
For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation: https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.13/html/multicluster_global_hub/index
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-2026-55676

No EUVD known-exploited evidence

A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.

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
6.3 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.

What

A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.

Why

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

What

A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.

Why

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

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 → Insufficiently Protected Credentials → obtain information outside the intended access boundary
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-522 ↗

CWE-522: Insufficiently Protected Credentials. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

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:H/PR:L/UI:N/S:C/C:H/I:N/A:N

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.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
Stolen credentials, tokens and legitimate administration functions may provide continued access without deploying a large custom toolset.
NetworkCWE-522
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-55676Official EUVD mapping

A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.

Official EUVD record ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260812Security Bulletin 12 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 12 Aug 2026, published on 12 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

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 more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation: https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.13/html/multicluster_global_hub/index
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 10 Aug 2026 · Last source change 29 Sept 2026, 17:21 UTC · CWE-522 · Insufficiently Protected Credentials

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-2026-55676
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment

Missing structured fields: affected versions. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:67516; removed remediation: access.redhat.com/RHSA-2026:73038; removed vendor advisory: access.redhat.com/RHSA-2026:73038; 1 further removals.
    Before
    remediation: access.redhat.com/RHSA-2026:73038 · vendor advisory: access.redhat.com/RHSA-2026:73038 · vendor advisory: access.redhat.com/RHSA-2026:73419
    After
    remediation: access.redhat.com/RHSA-2026:67516
    CNA ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:73038; added vendor advisory: access.redhat.com/RHSA-2026:73038; removed remediation: access.redhat.com/RHSA-2026:67516; 1 further additions.
    Before
    remediation: access.redhat.com/RHSA-2026:67516
    After
    remediation: access.redhat.com/RHSA-2026:73038 · vendor advisory: access.redhat.com/RHSA-2026:73038 · vendor advisory: access.redhat.com/RHSA-2026:73419
    access.redhat.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: Multicluster Global Hub 1.4.9: 1788355417 < *; Multicluster Global Hub 1.5.8: 1789478830 < *; Multicluster Global Hub 1.7.3: 1788372439 < *; Multicluster Global Hub 1.8.2: 1788359461 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Multicluster Global Hub 1.4.9: 1788355417 < *; Multicluster Global Hub 1.5.8: 1789478830 < *; Multicluster Global Hub 1.6.6: 1790085268 < *; Multicluster Global Hub 1.7.3: 1788372439 < *; Multicluster Global Hub 1.8.2: 1788359461 < *, 1790638386 < *
    CNA ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:15bea39bf05f2c097d77771b481e6ddd20cedb4a4e59e49db004b7582294e61e_ppc64le as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:1935d279f46862eeb512bb4157e482832359effd86c4b455d9653c4637a5e05c_amd64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:3bfcf80b7b5ec26d710e9d792dde397dbf064dffe76acb67085b4f34ba2ca653_s390x as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:f8e71dc10b51ac2173107505522bf2943a451ad22a3856d79da00cd3c22c48d8_arm64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:75b73e6b5eff1d02d994db5f76dfedbf7fb52f99bbd9defcd1331bfe11813446_amd64 as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:afb6a321ed95f17754bd6a2037d8c44dfbd53cf501c20fc85afcf7aaeaad53df_arm64 as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:c84ba4fbcfe5256c92f28c7e21b17e5b6c92a7be07550486bcbb6ab3d558970b_s390x as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cc2eba544a7bbd2e0e553c4047d4fdafc3f8df62400ae0564503b60a0ef1c6c9_ppc64le as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:12b14d7e21b0ec1a23b04e8bf0f0a26371d831364631256d70f1115e6b668152_s390x as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:2457ed4af69bb79ad0200723124be2be1fade8245f15974547b95215b1a84869_ppc64le as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:df27e324a758d914eab80dc0ab73d34c38c7c81fdc3884884737a252722ae6d8_amd64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:e188a4e40913230b8562f2d8bb7b06af4e486570eb5135ff812eaeea51b05511_arm64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:6f87d47921c4b6161c6ead31676870b12f79ba240c478dd35ff5652313f949fa_arm64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:a99ee13ca3a00455bbdeadbffe28c658764a2a938e09e16d15324fe68a0c0e00_ppc64le as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cb7614e99220c6c8a7aad2d3d825a257b02a6404843f89d593f1a9d61ad22348_amd64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:d20697adb726ca17dcfec5d1773bd6a43e0c5c82bf730354f7c7aab83e33fbb9_s390x as a component of Multicluster Global Hub 1.8.2
    After
    Fixed: registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:15bea39bf05f2c097d77771b481e6ddd20cedb4a4e59e49db004b7582294e61e_ppc64le as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:1935d279f46862eeb512bb4157e482832359effd86c4b455d9653c4637a5e05c_amd64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:3bfcf80b7b5ec26d710e9d792dde397dbf064dffe76acb67085b4f34ba2ca653_s390x as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:f8e71dc10b51ac2173107505522bf2943a451ad22a3856d79da00cd3c22c48d8_arm64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:75b73e6b5eff1d02d994db5f76dfedbf7fb52f99bbd9defcd1331bfe11813446_amd64 as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:afb6a321ed95f17754bd6a2037d8c44dfbd53cf501c20fc85afcf7aaeaad53df_arm64 as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:c84ba4fbcfe5256c92f28c7e21b17e5b6c92a7be07550486bcbb6ab3d558970b_s390x as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cc2eba544a7bbd2e0e553c4047d4fdafc3f8df62400ae0564503b60a0ef1c6c9_ppc64le as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:06c38fd194d64956809abb9acc3614419cdcb26a3f48636a179ba62508e92c98_amd64 as a component of Multicluster Global Hub 1.6.6; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:69989db7b777af7fedc5ddb9e2d8719316ca5564f13549f5e1ac3e2cb0fc7ce5_ppc64le as a component of Multicluster Global Hub 1.6.6; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:74a69caabe14c5b803ead049df8941b3ae60edb474da24fc91aaf8c95fa05154_s390x as a component of Multicluster Global Hub 1.6.6; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:983f5f54e2505e1a8d457f45d8caab5aefd70ffebeea9f9f071dd8919aa9c5f2_arm64 as a component of Multicluster Global Hub 1.6.6; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:12b14d7e21b0ec1a23b04e8bf0f0a26371d831364631256d70f1115e6b668152_s390x as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:2457ed4af69bb79ad0200723124be2be1fade8245f15974547b95215b1a84869_ppc64le as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:df27e324a758d914eab80dc0ab73d34c38c7c81fdc3884884737a252722ae6d8_amd64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:e188a4e40913230b8562f2d8bb7b06af4e486570eb5135ff812eaeea51b05511_arm64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:2fb54434e80fd99e0f4ffb8f568181c78047aa2ef75f105a5247a1c1e32f0bb6_ppc64le as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:315b101e0c3bf4624321aede464e6bc1c994eb40d0f1bf230eb3988a28dc48b5_s390x as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:6f87d47921c4b6161c6ead31676870b12f79ba240c478dd35ff5652313f949fa_arm64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:949e39031b1a6f4006b220c67380ae29f64835e08712ff790d9a1f5d90c2a2ee_amd64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:a99ee13ca3a00455bbdeadbffe28c658764a2a938e09e16d15324fe68a0c0e00_ppc64le as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cb7614e99220c6c8a7aad2d3d825a257b02a6404843f89d593f1a9d61ad22348_amd64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:d20697adb726ca17dcfec5d1773bd6a43e0c5c82bf730354f7c7aab83e33fbb9_s390x as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:e7640a28e2f17e2f4f69ef01c644201650d25ddff0c96f41fad26f5d4b2e9380_arm64 as a component of Multicluster Global Hub 1.8.2
    Red Hat Product Security ↗
  5. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:67516; removed remediation: access.redhat.com/RHSA-2026:71597; removed vendor advisory: access.redhat.com/RHSA-2026:71597.
    Before
    remediation: access.redhat.com/RHSA-2026:71597 · vendor advisory: access.redhat.com/RHSA-2026:71597
    After
    remediation: access.redhat.com/RHSA-2026:67516
    CNA ↗
  6. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:71597; added vendor advisory: access.redhat.com/RHSA-2026:71597; removed remediation: access.redhat.com/RHSA-2026:67516.
    Before
    remediation: access.redhat.com/RHSA-2026:67516
    After
    remediation: access.redhat.com/RHSA-2026:71597 · vendor advisory: access.redhat.com/RHSA-2026:71597
    access.redhat.com ↗
  7. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: Multicluster Global Hub 1.4.9: 1788355417 < *; Multicluster Global Hub 1.7.3: 1788372439 < *; Multicluster Global Hub 1.8.2: 1788359461 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Multicluster Global Hub 1.4.9: 1788355417 < *; Multicluster Global Hub 1.5.8: 1789478830 < *; Multicluster Global Hub 1.7.3: 1788372439 < *; Multicluster Global Hub 1.8.2: 1788359461 < *
    CNA ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:15bea39bf05f2c097d77771b481e6ddd20cedb4a4e59e49db004b7582294e61e_ppc64le as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:1935d279f46862eeb512bb4157e482832359effd86c4b455d9653c4637a5e05c_amd64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:3bfcf80b7b5ec26d710e9d792dde397dbf064dffe76acb67085b4f34ba2ca653_s390x as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:f8e71dc10b51ac2173107505522bf2943a451ad22a3856d79da00cd3c22c48d8_arm64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:12b14d7e21b0ec1a23b04e8bf0f0a26371d831364631256d70f1115e6b668152_s390x as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:2457ed4af69bb79ad0200723124be2be1fade8245f15974547b95215b1a84869_ppc64le as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:df27e324a758d914eab80dc0ab73d34c38c7c81fdc3884884737a252722ae6d8_amd64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:e188a4e40913230b8562f2d8bb7b06af4e486570eb5135ff812eaeea51b05511_arm64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:6f87d47921c4b6161c6ead31676870b12f79ba240c478dd35ff5652313f949fa_arm64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:a99ee13ca3a00455bbdeadbffe28c658764a2a938e09e16d15324fe68a0c0e00_ppc64le as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cb7614e99220c6c8a7aad2d3d825a257b02a6404843f89d593f1a9d61ad22348_amd64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:d20697adb726ca17dcfec5d1773bd6a43e0c5c82bf730354f7c7aab83e33fbb9_s390x as a component of Multicluster Global Hub 1.8.2
    After
    Fixed: registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:15bea39bf05f2c097d77771b481e6ddd20cedb4a4e59e49db004b7582294e61e_ppc64le as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:1935d279f46862eeb512bb4157e482832359effd86c4b455d9653c4637a5e05c_amd64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:3bfcf80b7b5ec26d710e9d792dde397dbf064dffe76acb67085b4f34ba2ca653_s390x as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:f8e71dc10b51ac2173107505522bf2943a451ad22a3856d79da00cd3c22c48d8_arm64 as a component of Multicluster Global Hub 1.4.9; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:75b73e6b5eff1d02d994db5f76dfedbf7fb52f99bbd9defcd1331bfe11813446_amd64 as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:afb6a321ed95f17754bd6a2037d8c44dfbd53cf501c20fc85afcf7aaeaad53df_arm64 as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:c84ba4fbcfe5256c92f28c7e21b17e5b6c92a7be07550486bcbb6ab3d558970b_s390x as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cc2eba544a7bbd2e0e553c4047d4fdafc3f8df62400ae0564503b60a0ef1c6c9_ppc64le as a component of Multicluster Global Hub 1.5.8; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:12b14d7e21b0ec1a23b04e8bf0f0a26371d831364631256d70f1115e6b668152_s390x as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:2457ed4af69bb79ad0200723124be2be1fade8245f15974547b95215b1a84869_ppc64le as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:df27e324a758d914eab80dc0ab73d34c38c7c81fdc3884884737a252722ae6d8_amd64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:e188a4e40913230b8562f2d8bb7b06af4e486570eb5135ff812eaeea51b05511_arm64 as a component of Multicluster Global Hub 1.7.3; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:6f87d47921c4b6161c6ead31676870b12f79ba240c478dd35ff5652313f949fa_arm64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:a99ee13ca3a00455bbdeadbffe28c658764a2a938e09e16d15324fe68a0c0e00_ppc64le as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:cb7614e99220c6c8a7aad2d3d825a257b02a6404843f89d593f1a9d61ad22348_amd64 as a component of Multicluster Global Hub 1.8.2; registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:d20697adb726ca17dcfec5d1773bd6a43e0c5c82bf730354f7c7aab83e33fbb9_s390x as a component of Multicluster Global Hub 1.8.2
    Red Hat Product Security ↗
  9. Vendor guidanceAuthoritative vendor guidance changed: removed vendor advisory: access.redhat.com/RHSA-2026:67516; removed vendor advisory: access.redhat.com/RHSA-2026:67842; 1 further removals.
    Before
    remediation: access.redhat.com/RHSA-2026:67516 · vendor advisory: access.redhat.com/RHSA-2026:67516 · vendor advisory: access.redhat.com/RHSA-2026:67842 · 1 more references
    After
    remediation: access.redhat.com/RHSA-2026:67516
    CNA ↗
  10. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:67516; added vendor advisory: access.redhat.com/RHSA-2026:67516; 2 further additions.
    Before
    no authoritative guidance recorded
    After
    remediation: access.redhat.com/RHSA-2026:67516 · vendor advisory: access.redhat.com/RHSA-2026:67516 · vendor advisory: access.redhat.com/RHSA-2026:67842 · 1 more references
    access.redhat.com ↗
  11. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    See the vendor and CVE records for the affected range. · Fixed: Multicluster Global Hub 1.4.9: 1788355417 < *; Multicluster Global Hub 1.7.3: 1788372439 < *; Multicluster Global Hub 1.8.2: 1788359461 < *
    CNA ↗
  12. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    access.redhat.com ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-55676↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference · Red Hat RHSA-2026:67516↗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-2026-71577 · cve.blacktree.nl