CVE-2026-54100
High
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.
SeverityHigh
CVSS8.3
Exploit probability—
Product
Redhat Openshift Container Platform
PublishedJun 22, 2026
First seenJun 22, 2026
Weakness typeCWE-295CWE-295
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat openshift_container_platform | 4.0 ≤ v ≤ 4.22.1 | — |
| redhat windows_machine_config_operator | No range specified | — |
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