CVE-2025-2937 Inefficient Regular Expression Complexity in GitLab

What is CVE-2025-2937?

CVE-2025-2937 is a medium-severity denial of service vulnerability in Gitlab Gitlab, published on 13 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue has been discovered in GitLab CE/EE affecting all versions from 13.2 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to create a denial of service condition by sending specially crafted markdown payloads to the Wiki feature.

Weakness: CWE-1333

Which versions are affected by CVE-2025-2937?

1 open source package ship an affected version, including gitlab. It affects 1 product.

Products include Gitlab Gitlab.

How do I fix CVE-2025-2937?

Upgrade gitlab to a fixed version for your release line: 18.0.6, 18.1.4 or 18.2.2.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-2937 being exploited?

There is no known exploitation of CVE-2025-2937 in the wild and no public exploit code.

Other vulnerabilities in Gitlab Gitlab

• CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Exploited Critical 10.0
• CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal Exploited Critical 10.0
• CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control Exploited Critical 10.0
• CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution Exploited Critical 10.0
• CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Exploited Medium 6.8

All Gitlab Gitlab vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-gitlab-2025-2937, GHSA-qfpg-mw2p-44hg, MINI-94fh-wmfx-85gp, MINI-h457-qx9v-wjxf, MINI-rh5r-xwmg-5c7m, UBUNTU-CVE-2025-2937.