Description (CNA)
A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. A tenant administrator with namespace-scoped privileges can exploit this vulnerability by creating a namespaced ClusterCurator. This action inadvertently grants the tenant administrator the ability to mint a token for a ServiceAccount with cluster-wide administrative authority. This leads to a privilege escalation, allowing the tenant administrator to gain full control over the cluster.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / multicluster engine for Kubernetes 2.1 | unaffected 1787201612 before * |
| Red Hat / multicluster engine for Kubernetes 2.11 | unaffected 1787238383 before * |
| Red Hat / multicluster engine for Kubernetes 2.6 | unaffected 1787264185 before * |
| Red Hat / multicluster engine for Kubernetes 2.8 | unaffected 1787259011 before * |
| Red Hat / multicluster engine for Kubernetes 2.9 | unaffected 1787201646 before * |
CWE
CWE-266
References
- 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/security/cve/CVE-2026-10059
- https://bugzilla.redhat.com/show_bug.cgi?id=2483187
ADP enrichment
No English description supplied.
No references supplied.