CVE-2026-10059: Incorrect Privilege Assignment in Red Hat Multicluster Engine for Kubernetes
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.
CVE-2026-10059: Incorrect Privilege Assignment in Red Hat Multicluster Engine for Kubernetes
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
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-05-29T08:14:22.495Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-10059","vendor":"Red Hat"}]
Threat ID: 6a7331b4bf8831d539e4e97a
Added to database: 08/05/2026, 12:51:00 UTC
Last updated: 08/05/2026, 12:51:00 UTC
Views: 1
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