7.7

CVE-2026-73267

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

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
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Produkt Multicluster Engine for Kubernetes
Default Statusaffected
VulnDex Vulnerability Enrichment
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CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 7.7 3.1 4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE-602 Client-Side Enforcement of Server-Side Security

The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server.

https://access.redhat.com/security/cve/CVE-2026-73267
https://bugzilla.redhat.com/show_bug.cgi?id=2514218