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Vulnerabilities CVE-2026-54100

CVE-2026-54100

High
Open
TLP:CLEAR

Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verified enables credential theft

NVD CVE.org
Critical Infrastructure Data Exfiltration

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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.

Details

CVSS Score
8.3
EPSS Score
0.29%

20.9th percentile

CVSS Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Confidence
90%
Published
Jun 22, 2026
Last Modified
Jul 28, 2026
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