CVE-2025-12983
Memory Allocation with Excessive Size Value in GitLab
- State
- Published
- Severity
- 3.5 Low
- Published
- Nov 15, 2025
- Updated
- Nov 17, 2025
- Reserved
- Nov 10, 2025
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 | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.5 Low | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L | GitLab |
Weaknesses
- CWE-789 Memory Allocation with Excessive Size Value
Affected Products
| Product | Versions |
|---|---|
GitLabGitLab |
|
References
- https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/
- GitLab Issue #296257issue-trackingpermissions-required
- HackerOne Bug Bounty Report #3419588technical-descriptionexploitpermissions-required
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