{"id":"BIT-gitlab-2026-12910","summary":"Missing Authentication for Critical Function in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an authenticated user to bypass SAML SSO sign-in restrictions and authenticate without SSO due to missing authentication enforcement checks.","aliases":["CVE-2026-12910"],"modified":"2026-09-25T14:15:15.162963311Z","published":"2026-09-25T12:47:09.035Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"]},"references":[{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/603742"},{"type":"WEB","url":"https://hackerone.com/reports/3745561"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12910"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"18.6.0"},{"fixed":"19.1.8"},{"introduced":"19.2.0"},{"fixed":"19.2.6"},{"introduced":"19.3.0"},{"fixed":"19.3.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2026-12910.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}],"schema_version":"1.9.0"}