CVE-2026-10059

Description

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.

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Produits concernés

• Red Hat multicluster engine for Kubernetes 2.1
• Red Hat multicluster engine for Kubernetes 2.11
• Red Hat multicluster engine for Kubernetes 2.6
• Red Hat multicluster engine for Kubernetes 2.8
• Red Hat multicluster engine for Kubernetes 2.9

Scores CVSS

Faiblesses (CWE)

• CWE-266

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/security/cve/CVE-2026-10059
• https://bugzilla.redhat.com/show_bug.cgi?id=2483187

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories