Unrated severityNVD Advisory· Published Sep 29, 2023· Updated Nov 20, 2025
Incorrect Authorization in GitLab
CVE-2023-3979
Description
An issue has been discovered in GitLab affecting all versions starting from 10.6 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible that upstream members to collaborate with you on your branch get permission to write to the merge request’s source branch.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 10.6
- (no CPE)range: >=10.6,<16.2.8||>=16.3,<16.3.5||>=16.4,<16.4.1
Patches
Vulnerability mechanics
References
2- hackerone.com/reports/2082560mitretechnical-descriptionexploitpermissions-required
- gitlab.com/gitlab-org/gitlab/-/issues/419972mitreissue-tracking
News mentions
1- GitLab Security Release: 16.4.1, 16.3.5, and 16.2.8GitLab Security Releases · Sep 28, 2023