CVE-2026-54100
Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verified enables credential theft
Description
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.
INFO
Published Date :
June 22, 2026, 12:46 p.m.
Last Modified :
June 22, 2026, 12:46 p.m.
Remotely Exploit :
No
Source :
redhat
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Enable SSH host key verification in WMCO configuration.
- Ensure secure SSH key management for nodes.
- Monitor SSH connection logs for anomalies.
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CVE-2026-54100 vulnerability anywhere in the article.