CVEvulnerability
CVE-2026-73266
7.1 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-08-13
- Last modified
- 2026-09-29
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
- Weaknesses
- CWE-441
Description
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.
Related
Weakness · CWE (1)
- CWE-441 Unintended Proxy or Intermediary weakness
References
- https://access.redhat.com/errata/RHSA-2026:59556 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:59557 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:59558 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:59559 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:59579 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:59593 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-73266 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2514217 bugzilla.redhat.com