CVE-2026-5816
Improper Resolution of Path Equivalence in GitLab
- State
- Published
- Severity
- 8.0 High
- Published
- Apr 22, 2026
- Updated
- Apr 23, 2026
- Reserved
- Apr 8, 2026
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.0 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N | GitLab |
Weaknesses
- CWE-41 Improper Resolution of Path Equivalence
Affected Products
| Product | Versions |
|---|---|
GitLabGitLab |
|
References
- HackerOne Bug Bounty Report #3572231technical-descriptionexploitpermissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/592816
- https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.