CVE-2025-12983

MEDIUM EPSS 28.5%
Published Nov 15, 20257mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Nov 15, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
28.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-789

Affected Products 6

VendorProductVersionRange
gitlabgitlab*≥16.9.0  –  <18.3.6
gitlabgitlab*≥16.9.0  –  <18.3.6
gitlabgitlab*≥18.4.0  –  <18.4.4
gitlabgitlab*≥18.4.0  –  <18.4.4
gitlabgitlab*≥18.5.0  –  <18.5.2
gitlabgitlab*≥18.5.0  –  <18.5.2

References 3

  • about.gitlab.com https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/
    Release NotesVendor Advisory
  • gitlab.com https://gitlab.com/gitlab-org/gitlab/-/issues/296257
    Broken Link
  • hackerone.com https://hackerone.com/reports/3419588
    Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.