CVE-2026-66793
High · 8.8CVSS
8.8
EPSS
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Published
Aug 18, 2026
CISA due date
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The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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