A flaw was found in cluster-backup-operator. A namespace administrator with privileges in the open-cluster-management-backup namespace can exploit a feature in the Restore Custom Resource (CR). By setting the cleanupBeforeRestore field to CleanupAll, an attacker can trigger an unguarded, cluster-wide deletion of all Red Hat Advanced Cluster Management (ACM) and Hive-labelled Secrets and ConfigMaps. This leads to a denial of service across the entire hub cluster by removing critical resources.
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History
Wed, 12 Aug 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in cluster-backup-operator. A namespace administrator with privileges in the open-cluster-management-backup namespace can exploit a feature in the Restore Custom Resource (CR). By setting the cleanupBeforeRestore field to CleanupAll, an attacker can trigger an unguarded, cluster-wide deletion of all Red Hat Advanced Cluster Management (ACM) and Hive-labelled Secrets and ConfigMaps. This leads to a denial of service across the entire hub cluster by removing critical resources. | |
| Title | cluster-backup-operator: cluster-backup-operator: CleanupAll triggers unguarded cluster-wide mass-delete via operator ServiceAccount | |
| Weaknesses | CWE-862 | |
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threat_severity
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cvssV3_1
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