Dashboard / CVE-2026-73267

CVE-2026-73267

HIGH
MEDIUM Priority: 0.05 BB Relevance: 66/100
Published: 2026-08-21 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Changed
C: None
I: None
A: High

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.

Weakness Classification (1)

References & Advisories (8)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS — Exploitation Probability

0.63%
Raw Score 0.006260
Percentile 49.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00626
2026-10-28
0.00626

Intelligence Sources

nvd ref →

External Links