CVE-2026-54100

Medium

Elevated severity or exploit probability.

CVSS base

8.3 HIGH

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

EPSS — probability of exploitation (30 days)

0.3%

22.8th percentile

CISA KEV

Not listed

Weakness / dates

CWE-295

Published 2026-06-22 · modified 2026-09-09

CVSS breakdown

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

Attack Vector	A	Adjacent
Attack Complexity	H	High
Privileges Required	N	None
User Interaction	N	None
Scope	C	Changed
Confidentiality	H	High
Integrity	H	High
Availability	H	High

Timeline

2026-06-22 — Published (NVD)
2026-09-09 — Last modified (NVD)

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.

Affected

redhat

References

Official: NVD · CVE.org