Unrated severityNVD Advisory· Published Apr 12, 2024· Updated Nov 20, 2025
Inefficient Regular Expression Complexity in GitLab
CVE-2023-6489
Description
A denial of service vulnerability was identified in GitLab CE/EE, versions 16.7.7 prior to 16.8.6, 16.9 prior to 16.9.4 and 16.10 prior to 16.10.2 which allows an attacker to spike the GitLab instance resources usage resulting in service degradation via chat integration feature.
Affected products
3cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 16.7.7
- (no CPE)range: >=16.7.7 <16.8.6, >=16.9 <16.9.4, >=16.10 <16.10.2
Patches
Vulnerability mechanics
References
2- hackerone.com/reports/2262450mitretechnical-descriptionexploitpermissions-required
- gitlab.com/gitlab-org/gitlab/-/issues/433520mitreissue-trackingpermissions-required
News mentions
1- GitLab Patch Release: 16.10.2, 16.9.4, 16.8.6GitLab Security Releases · Apr 10, 2024