CVE-2026-15723
Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab
- State
- Published
- Severity
- 8.2 High
- Published
- Oct 21, 2026
- Updated
- Oct 23, 2026
- Reserved
- Jul 14, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N | GitLab |
Weaknesses
- CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Affected Products
| Product | Versions |
|---|---|
GitLabGitLab |
|
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/605977
- HackerOne Bug Bounty Report #3852192technical-descriptionexploitpermissions-required
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/
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