High SEVERITY — Vulnerability

CVE-2026-54100 — A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform.

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.

Platform
Windows Server
CVE Record
CVE-2026-54100
CVSS Score
8.3/10
Published
22 June 2026
Views
38
Primary source: Review the official advisory at nvd.nist.gov Go to Source

Summary

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.

Assessment

  • CVE: CVE-2026-54100
  • CVSS taban puanı: 8.3
  • Vektör: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  • Kaynak: NVD kaydı

References

Action

  • Etkilenen sistemleri envanterden doğrulayın
  • Üretici yamasını bakım penceresinde uygulayın
  • Yama uygulanana kadar erişimi ağ katmanında kısıtlayın
openshift container platform * windows machine config operator -

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