SEPTEMBER 19, 2026
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Case File

CVE-2026-73267

HIGH · CVSS 7.7 EPSS 0.46% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-21 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

A vulnerability exists in the clusterclaims-controller component of the multicluster engine, allowing tenants with standard permissions to manipulate the `spec.namespace` field. This exploitation can lead to unauthorized deletion of ManagedClusters, including critical resources like the hub's local-cluster, resulting in potential denial of service. Organizations utilizing the multicluster engine should prioritize addressing this issue to prevent significant disruptions in their cluster management.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-73267
Severity
HIGH
CVSS
7.7
EPSS
0.46%

Original NVD 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.