HIGHVulnerability
CVE-2026-73266
A flaw was found in the clusterclaims-controller component of Multicluster Engine (MCE). An authenticated tenant can exploit this vulnerability by manipulating ClusterClaim labels. This allows the tenant to force a cluster to join a ManagedClusterSet belonging to another tenant. Such unauthorized access could enable the injection of policies and workloads into other tenants' clusters.
Properties
- severity
- HIGH
- score
- 7.1
- cve_id
- CVE-2026-73266
- vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
- published_at
- 2026-08-13T17:17:35.713
- last_modified
- 2026-08-18T02:17:28.680
Related Entities (2)
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Unintended Proxy or Intermediary ('Confused Deputy')
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