8.8
High
CVE-2026-66793 A flaw was found in the governance-policy-addon-controller component of Red Hat Advanced Cluster Management for…
Description
A flaw was found in the governance-policy-addon-controller component of Red Hat Advanced Cluster Management for Kubernetes. A user with permissions to annotate the namespaced ManagedClusterAddOn resource can override the governance-policy container image. This allows an attacker to run a controlled image with cluster-admin privileges on the managed cluster, leading to arbitrary code execution and privilege escalation.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 | Versions not published | |
| Red Hat Advanced Cluster Management for Kubernetes 2.11 1787683327 | earliest → < 1787683327 | 1787683327 |
| Red Hat Advanced Cluster Management for Kubernetes 2.13 1787259078 | earliest → < 1787259078 | 1787259078 |
| Red Hat Advanced Cluster Management for Kubernetes 2.14 1787080755 | earliest → < 1787080755 | 1787080755 |
| Red Hat Advanced Cluster Management for Kubernetes 2.15 1787238535 | earliest → < 1787238535 | 1787238535 |
| Red Hat Advanced Cluster Management for Kubernetes 2.16 1787080753 | earliest → < 1787080753 | 1787080753 |
| Red Hat Advanced Cluster Management for Kubernetes 2.17 1787227696 | earliest → < 1787227696 | 1787227696 |
References
- RHSA-2026:60386 access.redhat.com
- RHSA-2026:60387 access.redhat.com
- RHSA-2026:60388 access.redhat.com
- RHSA-2026:60389 access.redhat.com
- RHSA-2026:60390 access.redhat.com
- RHSA-2026:60391 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2507538 bugzilla.redhat.com
Timeline
- Published
- Last modified
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