CVE-2026-2726
Incorrect Authorization in GitLab
- State
- Published
- Severity
- 4.3 Medium
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Reserved
- Feb 18, 2026
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to perform unauthorized actions on merge requests in other projects due to improper access control during cross-repository operations.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | GitLab |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
GitLabGitLab |
|
References
- HackerOne Bug Bounty Report #3543886technical-descriptionexploitpermissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/590717
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/
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