CVE-2026-2104
Authorization Bypass Through User-Controlled Key in GitLab
- State
- Published
- Severity
- 4.3 Medium
- Published
- Apr 8, 2026
- Updated
- Apr 9, 2026
- Reserved
- Feb 6, 2026
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due to insufficient authorization checks.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | GitLab |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
GitLabGitLab |
|
References
- HackerOne Bug Bounty Report #3541476technical-descriptionexploitpermissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/589021
- https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/
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