PT-2026-51306 · Red Hat · Red Hat Openshift Container Platform 4+1

Published 2026-06-22 · Updated 2026-06-22 · CVE-2026-54100

Mitre

CVSS v3.1

8.3

High

Base vector

AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2026-54100

Affected Products

Red Hat Openshift Container Platform 4

Red Hat Openshift For Windows Containers

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-54100 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2487953 · Note
• https://access.redhat.com/security/cve/CVE-2026-54100 · Note