{"id":"CVE-2026-15723","aliases":["BIT-gitlab-2026-15723","EUVD-2026-107677","GHSA-92f3-3rm4-rcgv"],"status":"published","title":"Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab","description":"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.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00543,"percentile":0.45947,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-90"],"published":"2026-10-21T23:35:15Z","modified":"2026-11-04T23:10:00Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["19.3.6","19.4.3","19.5.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"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"}]}]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/605977","tags":["Permissions Required","web"]},{"url":"https://hackerone.com/reports/3852192","tags":["technical-description","exploit","permissions-required","Permissions Required","web","report"]},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/","tags":["Release Notes","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15723","tags":["web","advisory"]},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released"},{"url":"https://github.com/advisories/GHSA-92f3-3rm4-rcgv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15723.json","tags":["advisory"]},{"url":"https://gitlab.com/gitlab-org/gitlab","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-15723","title":"Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab","description":"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.","status":"published","published":"2026-10-21T23:35:15.434Z","modified":"2026-10-23T10:58:00.648Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-90"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-107677","description":"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.","status":"published","published":"2026-10-21T23:35:15Z","modified":"2026-10-23T10:58:00Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T16:59:33.058354Z"}],"ghsa":[{"id":"GHSA-92f3-3rm4-rcgv","title":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19...","description":"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.","status":"published","published":"2026-10-22T03:33:33Z","modified":"2026-10-22T03:33:42Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-90"],"updated_at":"2026-11-02T15:14:14.973906Z"}],"nvd":[{"id":"CVE-2026-15723","description":"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.","status":"published","published":"2026-10-22T01:16:59.477Z","modified":"2026-11-04T23:10:00.223Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-90"],"updated_at":"2026-11-05T01:45:12.506753Z"}],"osv":[{"id":"CVE-2026-15723","title":"Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab","description":"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.","status":"published","published":"2026-10-21T23:35:15.434Z","modified":"2026-11-05T21:16:14.298249126Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-90"],"updated_at":"2026-11-05T22:00:58.054534Z"},{"id":"BIT-gitlab-2026-15723","title":"Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab","description":"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.","status":"published","published":"2026-10-29T09:11:17.917Z","modified":"2026-10-29T10:45:06.859739923Z","updated_at":"2026-11-02T15:28:30.70064Z"}]}}