CVE-2026-54099 | BDVDB-2026-342105 Detail
Red HatRed Hat OpenShift for Windows Containers 10.19
Description#
A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A compromised Windows worker node that holds WICD credentials can submit a CSR that is auto-approved and signed by the cluster, yielding a client certificate that grants cluster-administrator privileges and enabling full cluster takeover.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-269 Improper Privilege Management
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/errata/RHSA-2026:94562
- https://access.redhat.com/security/cve/CVE-2026-54099
- https://bugzilla.redhat.com/show_bug.cgi?id=2487950
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54099.json
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.