by Kastro CVE-2026-10059
Red Hat multicluster engine for Kubernetes 2.1 — Cluster-curator-controller: cluster-curator-controller: namespace admin can escalate to cluster-wide curator authority via clustercurator serviceaccount token
Description · from the CVE record
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
ProductAffectedFixed inSource
multicluster engine for Kubernetes 2.1see advisory1787201612CNA
multicluster engine for Kubernetes 2.11see advisory1787238383CNA
multicluster engine for Kubernetes 2.6see advisory1787264185CNA
multicluster engine for Kubernetes 2.8see advisory1787259011CNA
multicluster engine for Kubernetes 2.9see advisory1787201646CNA
Scores by source
redhat (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total