A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. (CVE-2026-10059)
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.
A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. (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.
CVSS v3.1
Score 9.1critical
Weaknesses
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-f7c4-3r82-969w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-10059"]
- Ecosystems
- []
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Patch Information
Threat ID: 6a9d763aacd9273b49d80b21
Added to database: 09/06/2026, 14:18:34 UTC
Last updated: 09/06/2026, 15:22:08 UTC
Views: 5
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