Veille CVE
CVE-2026-54099
8.8 ÉlevéeDescription
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.
Produits concernés
- Red Hat OpenShift for Windows Containers 10.19
- Red Hat OpenShift for Windows Containers 10.20
- Red Hat OpenShift for Windows Containers 10.21
- Red Hat OpenShift for Windows Containers 10.22
- Red Hat OpenShift Container Platform 4
- Redhat openshift container platform
- Redhat windows machine config operator
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 8.8 Élevée | secalert@redhat.com | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | 8.8 Élevée | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- 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-2026-54099 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2487950 Issue TrackingVendor Advisory
- https://access.redhat.com/errata/RHSA-2026:47173
- https://access.redhat.com/errata/RHSA-2026:61780
- https://access.redhat.com/security/cve/CVE-2026-54099 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2487950 Issue TrackingVendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54099.json Vendor Advisory