Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to cause a denial of service condition by submitting specially crafted markdown content with nested formatting patterns.
Scores
CVSS v3
3.5
EPSS
0.0002
EPSS Percentile
6.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-789
Status
published
Products (1)
gitlab/gitlab
16.9.0 - 18.3.6 (2 CPE variants)
Published
Nov 15, 2025
Tracked Since
Feb 18, 2026