Description (CNA)
A flaw was found in the clusterclaims-controller component of multicluster engine (MCE). A tenant with standard permissions to create and delete ClusterClaim resources can exploit this by manipulating the `spec.namespace` field. This allows the tenant to specify and delete any ManagedCluster, including the hub's local-cluster or other tenants' clusters, due to a missing ownership check. This vulnerability can lead to a denial of service by enabling unauthorized deletion of ManagedClusters.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / multicluster engine for Kubernetes 2.10 | unaffected 1787196014 before * |
| Red Hat / multicluster engine for Kubernetes 2.11 | unaffected 1787239442 before * |
| Red Hat / multicluster engine for Kubernetes 2.17 | unaffected 1786577950 before * |
| Red Hat / multicluster engine for Kubernetes 2.6 | unaffected 1787259112 before * |
| Red Hat / multicluster engine for Kubernetes 2.8 | unaffected 1787259059 before * |
| Red Hat / multicluster engine for Kubernetes 2.9 | unaffected 1787195995 before * |
CWE
CWE-602
References
- https://access.redhat.com/errata/RHSA-2026:59556
- https://access.redhat.com/errata/RHSA-2026:59557
- https://access.redhat.com/errata/RHSA-2026:59558
- https://access.redhat.com/errata/RHSA-2026:59559
- https://access.redhat.com/errata/RHSA-2026:59579
- https://access.redhat.com/errata/RHSA-2026:59593
- https://access.redhat.com/security/cve/CVE-2026-73267
- https://bugzilla.redhat.com/show_bug.cgi?id=2514218
ADP enrichment
No English description supplied.
No references supplied.