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VULNERABILITIES

CVE-2026-73267 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.7 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:59556 [email protected]
https://access.redhat.com/errata/RHSA-2026:59557 [email protected]
https://access.redhat.com/errata/RHSA-2026:59558 [email protected]
https://access.redhat.com/errata/RHSA-2026:59559 [email protected]
https://access.redhat.com/errata/RHSA-2026:59579 [email protected]

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-602Client-Side Enforcement of Server-Side Security[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-73267
NVD Published Date:
Aug 21, 2026
NVD Last Modified:
Sep 8, 2026
Source:
[email protected]
CVE-2026-73267 Details - Not Deferred