CVE-2026-73267 (GCVE-0-2026-73267)

Vulnerability from cvelistv5 – Published: 2026-08-21 02:43 – Updated: 2026-09-29 19:41
VLAI
Title
Clusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no local ownership check
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 15:34 UTC
CWE
  • CWE-602 - Client-Side Enforcement of Server-Side Security
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1075 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:59556 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59557 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59558 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59559 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59579 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59593 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-73267 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2514218 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat multicluster engine for Kubernetes 2.10 Unaffected: 1787196014 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.10::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.11 Unaffected: 1787239442 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.11::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.17 Unaffected: 1786577950 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.17::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.6 Unaffected: 1787259112 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.6::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.8 Unaffected: 1787259059 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.8::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.9 Unaffected: 1787195995 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.9::el9
Create a notification for this product.
Date Public
2026-08-11 00:00
Show details on NVD website

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}



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