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VulnerabilityPublished Updated

CVE-2026-70398: Red Hat Advanced Cluster Management for Kubernetes 2.11 · Confused Deputy

Affects Red Hat Advanced Cluster Management for Kubernetes 2.11Source CVE Database V5

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Not known to be exploited · CVSS 9.6 Critical.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 3.1 base score
9.6Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

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 8 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

Currently, no mitigation or patch meets Red Hat Product Security's criteria for ease of use, applicability, or stability. Users should monitor Red Hat's advisory for updates. Customers with a Technical Account Manager (TAM) or RHEL Security Select Add-on can consult directly with Red Hat for guidance. Until a fix is available, restricting tenant privileges and monitoring for suspicious activity related to GitOpsCluster controller operations may help reduce risk, but no official mitigation is provided.

Description

A flaw was found in multicloud-integrations, a component of Red Hat Advanced Cluster Management (RHACM). This vulnerability allows an authenticated user, referred to as a tenant, to manipulate the GitOpsCluster controller. By exploiting this, a tenant can redirect sensitive spoke cluster bearer tokens from secure locations to a namespace they control. This unauthorized access to tokens can lead to the disclosure of critical information and bypass security policies within ArgoCD AppProjects.

References

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