Vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2

CVE-2026-67567

A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a tenant, who has the ability to create HelmRelease custom resources (CRs), to bypass existing security controls. The system's HelmRelease controller processes Helm chart templates using its own elevated ServiceAccount privileges without proper validation. This enables the tenant to deploy arbitrary resources across the entire cluster, leading to a significant security compromise.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-67567?
CVE-2026-67567 is a critical-severity vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 9.9/10. Published 2026-08-20.
How severe is CVE-2026-67567?
Critical severity. CVSS v3 base score is 9.9 out of 10.