What is CVE-2026-10059?

CVE-2026-10059 is a critical-severity vulnerability in Red Hat Multicluster Engine For Kubernetes, classified under Incorrect Privilege Assignment. CVSS score: 9.1/10. Published 2026-08-05.

How severe is CVE-2026-10059?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Privilege escalation in Red Hat Multicluster Engine For Kubernetes

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…

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Red Hat Multicluster Engine For Kubernetes

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-10059?: CVE-2026-10059 is a critical-severity vulnerability in Red Hat Multicluster Engine For Kubernetes, classified under Incorrect Privilege Assignment. CVSS score: 9.1/10. Published 2026-08-05.
How severe is CVE-2026-10059?: Critical severity. CVSS v3 base score is 9.1 out of 10.