Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters_CVE-2026-54099

{
    "lastseen": "",
    "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.",
    "published": "2026-06-22T12:46:04.051Z",
    "modified": "2026-06-22T12:46:04.051Z",
    "type": "cve",
    "title": "Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-54099\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2487950",
    "id": "CVE-2026-54099",
    "bulletinFamily": "",
    "cwe": [
        "CWE-269"
    ],
    "cvelist": null,
    "sourceData": "",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Red Hat OpenShift Container Platform 4",
    "version": "",
    "vendor": "Red Hat",
    "ai_description": "Privilege escalation vulnerability in Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform via extra organization values in Certificate Signing Request",
    "ai_severity": "High",
    "ai_vendor": "Red Hat",
    "ai_product": "Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform",
    "ai_version": "4",
    "ai_score": 8.8
}