CVE-2023-6736

Inefficient Regular Expression Complexity in GitLab

An issue has been discovered in GitLab EE affecting all versions starting from 11.3 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted content in the CODEOWNERS file.

Affected

GitLab

CVSS v3.1 NVD

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.64% chance of exploitation in the next 30 days, 50th percentile

Published

2024-02-07

Updated

2026-04-24

Proof-of-concept exploits (1)

• https://hackerone.com/reports/2269023

Security advisories

• https://gitlab.com/gitlab-org/gitlab/-/issues/435036

References

• CVE Record
• NVD entry