CVE-2025-12983
Last modified
CVE-2025-12983 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 16.9.0, < 18.3.6 |
| Gitlab | Gitlab | >= 18.4.0, < 18.4.4 |
| Gitlab | Gitlab | >= 18.5.0, < 18.5.2 |
References
- https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/Release Notes, Vendor Advisory
- https://hackerone.com/reports/3419588Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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