CVEvulnerability
CVE-2026-54100
8.3 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-06-22
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.3 HIGH — CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 8.3 HIGH — CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-295
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 configurations
• redhat openshift container platform (>= 4.0 <= 4.22.1)
• redhat windows machine config operator
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- https://access.redhat.com/errata/RHSA-2026:47173 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:61780 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:81397 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:82440 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-54100 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2487953 Issue Tracking, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:47173 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:61780 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-54100 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2487953 Issue Tracking, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54100.json Vendor Advisory