CVE-2026-66800
CVE-2026-66800: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.1
High [CVE-2026-66800] CleanupAll triggers unguarded cluster-wide mass-delete via operator ServiceAccount
CVE-2026-66800Source published Source updated
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network. 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. This vulnerability is rated as Important. A namespace administrator within the `open-cluster-management-backup` namespace in Red Hat Advanced Cluster Management for…
- Affected products in this advisory
- Red Hat Advanced Cluster Management for Kubernetes 2.11
- Red Hat Advanced Cluster Management for Kubernetes 2.13
- Red Hat Advanced Cluster Management for Kubernetes 2.14
- Red Hat Advanced Cluster Management for Kubernetes 2.15
2 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- rhacm2/cluster-backup-rhel9-operator:1787684668
- rhacm2/cluster-backup-rhel9-operator:1787259060
- rhacm2/cluster-backup-rhel9-operator:1787183178
- rhacm2/cluster-backup-rhel9-operator:1787238500
8 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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