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An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH options or shell commands, achieving code execution on the Cockpit host without valid credentials. The injection occurs during the authentication flow before any credential verification takes place, meaning no login is required to exploit the vulnerability.","epss":{"date":"2026-11-04","percentile":0.96816,"score":0.1548},"exploits":[],"kev":null,"metrics":[{"score":9.8,"severity":"critical","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":9.8,"severity":"critical","source":"ADP: redhat-SADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":9.8,"severity":"critical","source":"NVD: secalert@redhat.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":9.8,"severity":"critical","source":"NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793834257933,"publishedAt":1775579428069,"references":[{"source":"CNA: 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redhat-SADP","text":"RHSA-2026:7381: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0)\n\nRHSA-2026:7383: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10)\n\nRHSA-2026:7382: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6)\n\nRHSA-2026:7384: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9)"}],"revision":"11ea51143431ed59c4519b165830cb30c9fa959551b4b3b70a3a240d5e9c590b","sources":[{"modifiedAt":1793831851042,"name":"CNA: redhat","retrievedAt":1793833855906,"url":"https://www.cve.org/CVERecord?id=CVE-2026-4631"},{"modifiedAt":1793834257933,"name":"NVD","retrievedAt":1793837967950,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4631"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793833886058,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-4631"}],"ssvc":{"assessedAt":1775660386530,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection","updatedAt":1793837967950}