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.
Metrics
Affected Vendors & Products
References
History
Fri, 21 Aug 2026 06:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat multicluster Engine For Kubernetes
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| Vendors & Products |
Redhat multicluster Engine For Kubernetes
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Fri, 21 Aug 2026 03:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Clusterclaims-controller: clusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no ownership check | |
| First Time appeared |
Redhat
Redhat multicluster Engine |
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| Weaknesses | CWE-602 | |
| CPEs | cpe:/a:redhat:multicluster_engine | |
| Vendors & Products |
Redhat
Redhat multicluster Engine |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-08-21T02:43:36.017Z
Reserved: 2026-08-11T17:22:38.645Z
Link: CVE-2026-73267
No data.
Status : Received
Published: 2026-08-21T03:16:39.080
Modified: 2026-08-21T03:16:39.080
Link: CVE-2026-73267
No data.
OpenCVE Enrichment
Updated: 2026-08-21T06:00:10Z