Description
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.
References (2)
Core 2
Core References
Broken Link issue-tracking
https://gitlab.com/gitlab-org/gitlab/-/issues/415995
Permissions Required technical-description
exploit
permissions-required
https://hackerone.com/reports/1959727
Scores
CVSS v3
7.5
EPSS
0.4467
EPSS Percentile
98.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1333
Status
published
Products (1)
gitlab/gitlab
8.14 - 16.0.8 (2 CPE variants)
Published
Aug 02, 2023
Tracked Since
Feb 18, 2026