Medium severity4.3NVD Advisory· Published Nov 6, 2023· Updated Jun 17, 2026
CVE-2023-3909
CVE-2023-3909
Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file.
Affected products
7cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 12.3
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*range: >=12.3.0,<16.3.6
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*range: >=12.3.0,<16.3.6
- cpe:2.3:a:gitlab:gitlab:16.5.0:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:16.5.0:*:*:*:enterprise:*:*:*
- Range: starting from 12.3 before 16.3.6, starting from 16.4 before 16.4.2, starting from 16.5 before 16.5.1
Patches
Vulnerability mechanics
References
2- gitlab.com/gitlab-org/gitlab/-/issues/418763nvdBroken Link
- hackerone.com/reports/2050269nvdPermissions Required
News mentions
1- GitLab Security Release: 16.5.1, 16.4.2, 16.3.6GitLab Security Releases · Oct 31, 2023