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CVE-2026-54099

8.8 high SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 5

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.8 · redhatNVD modified 2026-10-14 03:17

Affected (CPE criteria) 2

  • cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:windows_machine_config_operator:-:*:*:*:*:*:*:*

References 11