Clusterclaims-controller: confused deputy: tenant-controlled clusterclaim labels propagated to managedcluster, enabling cross-tenant managedclusterset join (Red Hat multicluster engine for Kubernetes 2.10)
En bref
- Source
- NVD
- EPSS
- EPSS 0.35 % · centile 29 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Awaiting Analysis
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.
Faiblesses (CWE)
- CWE-441 — Proxy ou intermédiaire non prévu (député confus)
Références
- https://access.redhat.com/errata/RHSA-2026:59556
- https://access.redhat.com/errata/RHSA-2026:59557
- https://access.redhat.com/errata/RHSA-2026:59558
- https://access.redhat.com/errata/RHSA-2026:59559
- https://access.redhat.com/errata/RHSA-2026:59579
- https://access.redhat.com/errata/RHSA-2026:59593
- https://access.redhat.com/security/cve/CVE-2026-73266
- https://bugzilla.redhat.com/show_bug.cgi?id=2514217
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N | redhat |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N | NVD · secalert@redhat.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-58132
- GCVE · GCVE-0-2026-73266
Produits affectés
| Produit | Versions |
|---|---|
| Red Hat · multicluster engine for Kubernetes 2.10 | unaffected 1787196014 < * |
| Red Hat · multicluster engine for Kubernetes 2.11 | unaffected 1787239442 < * |
| Red Hat · multicluster engine for Kubernetes 2.17 | unaffected 1786577950 < * |
| Red Hat · multicluster engine for Kubernetes 2.6 | unaffected 1787259112 < * |
| Red Hat · multicluster engine for Kubernetes 2.8 | unaffected 1787259059 < * |
| Red Hat · multicluster engine for Kubernetes 2.9 | unaffected 1787195995 < * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |