CVE-2026-54100
Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verified enables credential theft
CVSS Score
8.3
EPSS Score
0.3%
EPSS Percentile
20th
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.
| CWE | CWE-295 |
| Vendor | red hat |
| Product | red hat openshift for windows containers 10.22 |
| Published | Jun 22, 2026 |
| Last Updated | Jul 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat OpenShift for Windows Containers 10.22
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:47173 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-54100 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2487953 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54100.json