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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat Red Hat OpenShift for Windows Containers 10.19
Default version status: affected
1789075615 to < *unaffected
Red Hat Red Hat OpenShift for Windows Containers 10.20
Default version status: affected
1789075603 to < *unaffected
Red Hat Red Hat OpenShift for Windows Containers 10.21
Default version status: affected
1787065708 to < *unaffected
Red Hat Red Hat OpenShift for Windows Containers 10.22
Default version status: affected
1783692800 to < *unaffected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
References
- https://access.redhat.com/errata/RHSA-2026:47173 ↗
- https://access.redhat.com/errata/RHSA-2026:61780 ↗
- https://access.redhat.com/errata/RHSA-2026:81397 ↗
- https://access.redhat.com/errata/RHSA-2026:82440 ↗
- https://access.redhat.com/security/cve/CVE-2026-54100 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2487953 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54100.json ↗