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VulnerabilityPublished Updated

CVE-2026-70398: CWE-441

Source GCVE Database

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Authoritative record:CVE-2026-70398· Critical 9.6

Not known to be exploited · CVSS 9.6 Critical : patch Red Hat Advanced Cluster Management for Kubernetes 2.11 as a priority.

Data as of 11 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 12 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 an official security update in Red Hat Advanced Cluster Management for Kubernetes version 2.17.1 that addresses this vulnerability. Users should apply this update as soon as possible. Prior to applying this update, ensure all previously released relevant errata are applied. Refer to the Red Hat advisory RHSA-2026:60386 and the official update instructions at https://access.redhat.com/articles/11258 for detailed remediation steps.

Description

A vulnerability in the multicloud-integrations component of Red Hat Advanced Cluster Management (RHACM) allows an authenticated tenant user to manipulate the GitOpsCluster controller. This manipulation enables the tenant to redirect sensitive spoke cluster bearer tokens to a namespace they control, potentially disclosing critical information and bypassing security policies within ArgoCD AppProjects. The flaw has a high severity with a CVSS score of 9.6.

References

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