CVE-2023-3364 HIGH

CVE-2023-3364: Inefficient Regular Expression Complexity in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-1333
Published August 1, 2023
Last update November 20, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.14 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use AutolinkFilter to the preview_markdown endpoint.

Key dates

02Disclosure timeline

August 1, 2023 CVE published
November 20, 2025 Record updated