Security Advisory

CVE-2026-73267

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-21 02:43:36

Last updated 2026-08-21 02:43:36

Assigner redhat

CVSS score 7.7

State PUBLISHED

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.

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