CVE-2026-54100 | A flaw was found in the Windows Machine Config Operator (WMC… | CVSS 8.3 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.

Metadata

CVE ID: CVE-2026-54100
State: PUBLISHED
Assigner: redhat
Reserved: 2026-06-11 19:02 UTC
Published: 2026-06-22 12:46 UTC
Last updated: 2026-06-22 14:11 UTC
Primary CWE: CWE-295
Improper Certificate Validation
Vendor / Product: Red Hat / Red Hat OpenShift Container Platform 4
Sources: cve.org · NVD

Severity & Metrics

8.3 HIGH CVSS 3.1

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (3)

Vendor	Product	Platform	Versions
Red Hat	Red Hat OpenShift Container Platform 4	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—
Red Hat	Red Hat OpenShift for Windows Containers	—	—

Weakness (CWE)

CWE	Source	Description
CWE-295	cna	Improper Certificate Validation

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.3	HIGH	3.1	cna	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References (2)