CVE-2026-54099— Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters
Affected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat OpenShift Container Platform 4 | any | affected |
any | affected | ||
| Red Hat | Red Hat OpenShift for Windows Containers | any | affected |
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I. Basic Information for CVE-2026-54099
Vulnerability Information
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Vulnerability Title
Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat OpenShift Container Platform 4 | - | cpe:/a:redhat:openshift:4 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | - | cpe:/a:redhat:openshift:4 | |
| Red Hat | Red Hat OpenShift for Windows Containers | - | cpe:/a:redhat:windows_machine_config |
II. Public POCs for CVE-2026-54099
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-54099 (1)
Other References for CVE-2026-54099 (1)
Same Patch Batch · Red Hat · 2026-06-22 · 4 CVEs total
| CVE-2026-54100 | 8.3 HIGH | Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verifie |
| CVE-2026-12725 | 5.9 MEDIUM | Dnsmasq: dnsmasq: heap buffer overflow in log_query() when logging unsupported ds/dnskey r |
| CVE-2026-12549 | 4.8 MEDIUM | Libsoup: incomplete fix for cve-2026-2443: range suffix overflow in libsoup soupserver |
IV. Related Vulnerabilities
Same product: Red Hat OpenShift Container Platform 4
- CVE-2026-54100
Windows-machine-config-operator: windows-machine-config-oper - CVE-2026-10843
Cloud-credential-operator: cco mint-mode credentialsrequest - CVE-2026-10533
Openshift: openshift: non-admin user can bypass resourcequot - CVE-2026-42965
Openshift/router: openshift/router: cloud metadata ssrf via - CVE-2026-7309
Openshift-controller-manager: openshift container platform:
Same vendor: Red Hat
Same weakness: CWE-269
- CVE-2026-46680
containerd user ID handling bypass allows runAsNonRoot evasi - CVE-2026-13228
LatePoint <= 5.6.3 - Authenticated (Custom+) Privilege Escal - CVE-2026-12224
Dokan Pro <= 5.0.4 - Authenticated (Vendor+) Privilege Escal - CVE-2026-57995
phpMyFAQ - Privilege Escalation via Missing Self-Rights Cons - CVE-2026-58054
MyBB - Privilege Escalation from Limited ACP User Management
V. Comments for CVE-2026-54099
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