{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54099","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-06-11T19:02:42.736Z","datePublished":"2026-06-22T12:46:04.051Z","dateUpdated":"2026-06-23T03:55:53.995Z"},"containers":{"cna":{"title":"Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters","metrics":[{"other":{"content":{"value":"Important","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4-wincw/windows-machine-config-rhel8-operator","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4-wincw/windows-machine-config-rhel9-operator","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift for Windows Containers","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4-wincw/windows-machine-config-rhel9-operator","defaultStatus":"affected","cpes":["cpe:/a:redhat:windows_machine_config"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-54099","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2487950","name":"RHBZ#2487950","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-06-10T00:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-269","description":"Improper Privilege Management","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-269: Improper Privilege Management","workarounds":[{"lang":"en","value":"At this time, no mitigation or workaround is available for this vulnerability. Customers are advised to apply the appropriate updates as they become available."}],"timeline":[{"lang":"en","time":"2026-06-11T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-06-10T00:00:00.000Z","value":"Made public."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-06-22T12:46:04.051Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-22T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-54099"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-23T03:55:53.995Z"}}]}}