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CVE-2026-54100

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

Published: Jun 22, 2026Updated: Jun 22, 2026 Sources: CVE List NVDCWE-295
NVD MITRE
8.3CVSSHIGH
EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

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.

CVSS Vector Breakdown

AV:AAC:HPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-295

Affected Products

Red Hat OpenShift Container Platform 4Red Hat
SaaSSaaS Service
Cloud & SaaS / container-orchestration
Red Hat OpenShift for Windows ContainersRed Hat
On-prem
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Collection
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References

https://access.redhat.com/security/cve/CVE-2026-54100
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2487953
bugzilla.redhat.com

Timeline

Published
Jun 22, 2026
Last Updated
Jun 22, 2026

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