VULNERABILITY INTELLIGENCE

CVE-2026-54099

CVSS score8.8 HIGH
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-06-22
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A compromised Windows worker node that holds WICD credentials can submit a CSR that is auto-approved and signed by the cluster, yielding a client certificate that grants cluster-administrator privileges and enabling full cluster takeover.

Weakness classification

  • secalert@redhat.com: CWE-269
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-269

Primary references