Vulnerability 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 Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 16.9.0, < 18.3.6 |
Related Weaknesses (CWE)
References
- https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-releaseRelease NotesVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/296257Broken Link
- https://hackerone.com/reports/3419588Permissions Required
FAQ
What is CVE-2025-12983?
CVE-2025-12983 is a vulnerability with a CVSS score of 3.5 (LOW). 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 d...
How severe is CVE-2025-12983?
CVE-2025-12983 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-12983?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.