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VulnerabilityPublished Updated

CVE-2026-72526: CWE-441

Source GCVE Database

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Authoritative record:CVE-2026-72526· Critical 9.9

Not known to be exploited · CVSS 9.9 Critical · fixed in Red Hat Advanced Cluster Management for Kubernetes 2.11 package updates : patch Red Hat Advanced Cluster Management for Kubernetes 2.11 as a priority.

Data as of 10 Nov 2026, 23:24 UTC

CVSS 3.1 base score
9.9Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.17.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.11Affected–Fixed in–
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.13Affected–Fixed in–
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.14Affected–Fixed in–
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.15Affected–Fixed in–
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.16Affected–Fixed in–
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.17Affected–Fixed in–

AI-suggested

Red Hat has released a security update in Advanced Cluster Management for Kubernetes version 2.17.1 that fixes this vulnerability. Users should apply this update promptly. Ensure all previously released errata relevant to your system are applied before updating. Refer to Red Hat's official advisory and update instructions for detailed guidance.

Description

A critical vulnerability (CVE-2026-72526) exists in the multicloud-integrations component of Red Hat Advanced Cluster Management for Kubernetes. The flaw involves improper validation of the 'ocm-managed-cluster' annotation in Application Custom Resources, allowing a tenant with Application creation permissions on the hub cluster to target arbitrary managed clusters. This can cause ArgoCD on spoke clusters to synchronize attacker-controlled manifests, potentially leading to arbitrary code execution or privilege escalation on those clusters. A security update addressing this issue is available in Red Hat Advanced Cluster Management for Kubernetes version 2.17.1.

References

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