{"id":"BIT-gitlab-2026-15723","summary":"Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP auto-linking were both enabled, an authenticated user could have taken over an existing LDAP-backed account without any interaction from the targeted user, due to improper input sanitization in the LDAP email lookup path used during OmniAuth identity linking.","aliases":["CVE-2026-15723"],"modified":"2026-10-29T10:45:06.859739923Z","published":"2026-10-29T09:11:17.917Z","database_specific":{"cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"],"severity":"High"},"references":[{"type":"ADVISORY","url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/605977"},{"type":"WEB","url":"https://hackerone.com/reports/3852192"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15723"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.1.0"},{"fixed":"19.3.6"},{"introduced":"19.4.0"},{"fixed":"19.4.3"},{"introduced":"19.5.0"},{"fixed":"19.5.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2026-15723.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N"}]}],"schema_version":"1.9.2"}