CVE-2026-54100
Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verified enables credential theft
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
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.
Timeline
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- CVE published
- Record last updated
Affected versions
- openshift4-wincw/windows-machine-config-rhel9-operator
Version range not reported
- openshift4-wincw/windows-machine-config-rhel9-operator
Version range not reported
- openshift4-wincw/windows-machine-config-rhel9-operator
Version range not reported
- openshift4-wincw/windows-machine-config-rhel9-operator
Version range not reported
- openshift4-wincw/windows-machine-config-rhel8-operator
Version range not reported
- openshift4-wincw/windows-machine-config-rhel9-operator
Version range not reported