{"id":"CVE-2025-9276","aliases":["EUVD-2025-26436","GHSA-f2xw-w9gh-q2h9"],"status":"published","title":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability","description":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. This vulnerability could allow remote attackers to bypass authentication on systems that use the affected version of the Cockroach Labs cockroach-k8s-request-cert container image.\n\nThe specific flaw exists within the configuration of the system shadow file. The issue results from a blank password setting for the root user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22195.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00652,"percentile":0.51552,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-258"],"published":"2025-09-02T20:00:51Z","modified":"2026-06-17T10:08:39Z","products":[{"vendor":"cockroach labs","product":"cockroach-k8s-request-cert"},{"vendor":"cockroachlabs","product":"cockroach-k8s-request-cert"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-855/","tags":["x_research-advisory","Mitigation","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9276"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-855"},{"url":"https://github.com/advisories/GHSA-f2xw-w9gh-q2h9"}],"sources":{"cve":[{"id":"CVE-2025-9276","title":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability","description":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. This vulnerability could allow remote attackers to bypass authentication on systems that use the affected version of the Cockroach Labs cockroach-k8s-request-cert container image.\n\nThe specific flaw exists within the configuration of the system shadow file. The issue results from a blank password setting for the root user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22195.","status":"published","published":"2025-09-02T20:00:51.838Z","modified":"2025-09-03T15:32:42.164Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-258"],"updated_at":"2026-11-02T14:32:33.755525Z"}],"euvd":[{"id":"EUVD-2025-26436","description":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. This vulnerability could allow remote attackers to bypass authentication on systems that use the affected version of the Cockroach Labs cockroach-k8s-request-cert container image.\n\nThe specific flaw exists within the configuration of the system shadow file. The issue results from a blank password setting for the root user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22195.","status":"published","published":"2025-09-02T20:00:51Z","modified":"2025-09-03T15:32:42Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:31:47.847286Z"}],"ghsa":[{"id":"GHSA-f2xw-w9gh-q2h9","title":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability...","description":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. This vulnerability could allow remote attackers to bypass authentication on systems that use the affected version of the Cockroach Labs cockroach-k8s-request-cert container image.\n\nThe specific flaw exists within the configuration of the system shadow file. The issue results from a blank password setting for the root user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22195.","status":"published","published":"2025-09-02T21:30:59Z","modified":"2025-09-02T21:31:10Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-258"],"updated_at":"2026-11-02T15:03:28.374084Z"}],"nvd":[{"id":"CVE-2025-9276","description":"Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. This vulnerability could allow remote attackers to bypass authentication on systems that use the affected version of the Cockroach Labs cockroach-k8s-request-cert container image.\n\nThe specific flaw exists within the configuration of the system shadow file. The issue results from a blank password setting for the root user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22195.","status":"published","published":"2025-09-02T20:15:40.407Z","modified":"2026-06-17T10:08:39.68Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-258"],"updated_at":"2026-11-02T14:11:26.200344Z"}]}}