CVE-2026-54100

HighCVSS 8.3/10Last modified Oct 14, 2026

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.

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-295

Affected software

Vendor	Product	Versions
Red Hat	Red Hat OpenShift for Windows Containers 10.19	—
Red Hat	Red Hat OpenShift for Windows Containers 10.20	—
Red Hat	Red Hat OpenShift for Windows Containers 10.21	—
Red Hat	Red Hat OpenShift for Windows Containers 10.22	—
Red Hat	Red Hat OpenShift Container Platform 4	—
Red Hat	Red Hat OpenShift Container Platform 4	—
Red Hat	Red Hat OpenShift for Windows Containers 10.21	—
Red Hat	Red Hat OpenShift for Windows Containers 10.22	—
Red Hat	Red Hat OpenShift Container Platform 4	—
Red Hat	Red Hat OpenShift Container Platform 4	—

References

https://access.redhat.com/errata/RHSA-2026:47173
https://access.redhat.com/errata/RHSA-2026:61780
https://access.redhat.com/errata/RHSA-2026:81397
https://access.redhat.com/errata/RHSA-2026:82440
https://access.redhat.com/security/cve/CVE-2026-54100Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2487953Issue Tracking, Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:47173
https://access.redhat.com/errata/RHSA-2026:61780
https://access.redhat.com/security/cve/CVE-2026-54100Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2487953Issue Tracking, Vendor Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54100.jsonVendor Advisory

Timeline

Published: Jun 22, 2026
Last modified: Oct 14, 2026
NVD status: Modified

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