Answer in brief
CVE-2026-54100 records a High severity (CVSS 8.3) vulnerability in Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verified enables credential theft. 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 8.3. 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. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.
Quoted source text, attributed separately from HOL analysis.