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CVE PROGRAM SOURCE RECORD7.7 High

CVE-2026-73267

Clusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no local ownership check

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Status
Published
Published
Updated
Assigning organization
redhat

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat multicluster engine for Kubernetes 2.10

Default version status: affected

  • 1787196014 to < *unaffected

Red Hat multicluster engine for Kubernetes 2.11

Default version status: affected

  • 1787239442 to < *unaffected

Red Hat multicluster engine for Kubernetes 2.17

Default version status: affected

  • 1786577950 to < *unaffected

Red Hat multicluster engine for Kubernetes 2.6

Default version status: affected

  • 1787259112 to < *unaffected

Red Hat multicluster engine for Kubernetes 2.8

Default version status: affected

  • 1787259059 to < *unaffected

Red Hat multicluster engine for Kubernetes 2.9

Default version status: affected

  • 1787195995 to < *unaffected

References