CVE-2023-3424

Inefficient Regular Expression Complexity in GitLab

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.

Affected

GitLab

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.91% chance of exploitation in the next 30 days, 59th percentile

Published

2023-07-13

Updated

2024-10-30

Proof-of-concept exploits (1)

• https://hackerone.com/reports/1960970

Security advisories

• https://gitlab.com/gitlab-org/gitlab/-/issues/409802

References

• CVE Record
• NVD entry