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.
Metrics
Affected Vendors & Products
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History
Thu, 27 Aug 2026 04:00:00 +0000
| Type | Values Removed | Values Added |
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| CPEs | cpe:/a:redhat:acm:2.11::el9 cpe:/a:redhat:acm:2.14::el9 cpe:/a:redhat:acm:2.16::el9 |
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| References |
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Wed, 26 Aug 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
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| CPEs | cpe:/a:redhat:acm:2.13::el9 cpe:/a:redhat:acm:2.15::el9 cpe:/a:redhat:acm:2.17::el9 |
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| References |
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Fri, 21 Aug 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Redhat advanced Cluster Management For Kubernetes
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| Vendors & Products |
Redhat advanced Cluster Management For Kubernetes
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Wed, 19 Aug 2026 00:15:00 +0000
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| Metrics |
threat_severity
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threat_severity
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Tue, 18 Aug 2026 19:30:00 +0000
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| Metrics |
ssvc
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Tue, 18 Aug 2026 15:15:00 +0000
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| 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. | |
| Title | Governance-policy-addon-controller: governance-policy-addon-controller: arbitrary container image override via managedclusteraddon annotation enables rce on spoke | |
| First Time appeared |
Redhat
Redhat acm |
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| Weaknesses | CWE-20 | |
| CPEs | cpe:/a:redhat:acm:2 | |
| Vendors & Products |
Redhat
Redhat acm |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-08-18T15:02:31.273Z
Updated: 2026-09-05T14:23:37.148Z
Reserved: 2026-07-27T17:51:24.886Z
Link: CVE-2026-66793
Updated: 2026-08-18T17:59:38.883Z
Status : Awaiting Analysis
Published: 2026-08-18T15:17:00.140
Modified: 2026-08-27T04:16:46.047
Link: CVE-2026-66793