{"id":"CVE-2025-11984","aliases":["BIT-gitlab-2025-11984","EUVD-2025-202648","GHSA-m766-xfqm-qm37","UBUNTU-CVE-2025-11984"],"status":"published","title":"Authentication Bypass Using an Alternate Path or Channel in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00391,"percentile":0.33535,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-288"],"published":"2025-12-11T04:04:47Z","modified":"2026-10-30T10:47:03Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["18.4.6","18.5.4","18.6.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"13.1.0"},{"fixed":"18.4.6"},{"introduced":"18.5.0"},{"fixed":"18.5.4"},{"introduced":"18.6.0"},{"fixed":"18.6.2"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gitlab","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/577847","tags":["issue-tracking","permissions-required","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/3322714","tags":["technical-description","exploit","permissions-required","Permissions Required","web","report"]},{"url":"https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/","tags":["Release Notes","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-11984","tags":["web","advisory"]},{"url":"https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released"},{"url":"https://github.com/advisories/GHSA-m766-xfqm-qm37"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/11xxx/CVE-2025-11984.json","tags":["advisory"]},{"url":"git://git@gitlab.com:gitlab-org/gitlab.git","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2025-11984","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-11984","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-11984","title":"Authentication Bypass Using an Alternate Path or Channel in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","status":"published","published":"2025-12-11T04:04:47.302Z","modified":"2026-02-26T16:21:04.83Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:32:50.872559Z"}],"euvd":[{"id":"EUVD-2025-202648","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","status":"published","published":"2025-12-11T04:04:47Z","modified":"2026-02-26T16:21:04Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T19:48:25.612568Z"}],"ghsa":[{"id":"GHSA-m766-xfqm-qm37","title":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18...","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","status":"published","published":"2025-12-11T06:30:24Z","modified":"2025-12-11T06:30:32Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T15:05:09.214908Z"}],"nvd":[{"id":"CVE-2025-11984","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","status":"published","published":"2025-12-11T05:16:36.97Z","modified":"2026-10-14T21:10:00.183Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:11:49.861863Z"}],"osv":[{"id":"CVE-2025-11984","title":"Authentication Bypass Using an Alternate Path or Channel in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","status":"published","published":"2025-12-11T04:04:47.302Z","modified":"2026-10-30T10:47:03.659369174Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T15:44:46.024537Z"},{"id":"UBUNTU-CVE-2025-11984","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","status":"published","published":"2025-12-11T05:16:00Z","modified":"2026-01-21T18:17:17.072496Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:20.144818Z"},{"id":"BIT-gitlab-2025-11984","title":"Authentication Bypass Using an Alternate Path or Channel in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.","status":"published","published":"2025-12-18T12:04:14.698Z","modified":"2026-09-08T08:47:43.90960356Z","updated_at":"2026-11-02T15:28:30.70064Z"}]}}