Answer in brief
CVE-2026-54099 records a High severity (CVSS 8.8) vulnerability in Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters. The current sources do not mark it as known exploited. The current feed maps Red Hat/openshift4-wincw/windows-machine-config-rhel8-operator (generic), Red Hat/openshift4-wincw/windows-machine-config-rhel9-operator (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/openshift4-wincw/windows-machine-config-rhel8-operator (generic), Red Hat/openshift4-wincw/windows-machine-config-rhel9-operator (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:windows_machine_config_operator:-:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/openshift4-wincw/windows-machine-config-rhel8-operatorgeneric | * | Not reported |
| Red Hat/openshift4-wincw/windows-machine-config-rhel9-operatorgeneric | * | Not reported |
Published upstream
Jun 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 22, 2026
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.
Quoted source text, attributed separately from HOL analysis.