Inefficient Regular Expression Complexity in GitLab
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-1333.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GitLab | GitLab | 13.2 to before 18.0.6; 18.1 to before 18.1.4; 18.2 to before 18.2.2 | 18.0.6, 18.1.4, 18.2.2 | Patch available | CNA |
- GitLab VendorGitLab Affected 13.2 to before 18.0.6; 18.1 to before 18.1.4; 18.2 to before 18.2.2 Fixed in 18.0.6, 18.1.4, 18.2.2 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 13.2.0 to before 18.0.6 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 13.2.0 to before 18.0.6 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 18.1.0 to before 18.1.4 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 18.1.0 to before 18.1.4 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 18.2.0 to before 18.2.2 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 18.2.0 to before 18.2.2 | Vulnerable | GitLab |
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 13.2.0 to before 18.0.6 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 13.2.0 to before 18.0.6 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.1.0 to before 18.1.4 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.1.0 to before 18.1.4 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.2.0 to before 18.2.2 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.2.0 to before 18.2.2 Vulnerable ·GitLab
Remediation
- Fix · CNA GitLab (GitLab) Fixed in 18.0.6, 18.1.4, 18.2.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
GitLab 18.0.6, 18.1.4, 18.2.2
9 records Highest priority Priority LOW 9 LOW
Other records, highest priority first
- TI-2025-07059 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLabPriority LOW 38
- TI-2025-01269 Allocation of Resources Without Limits or Throttling in GitLabPriority LOW 33
- TI-2024-11413 Incorrect Privilege Assignment in GitLabPriority LOW 32
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2937
- 2026-10-03 Alias added: GHSA-qfpg-mw2p-44hg
References
Exploit 1
Other 1
More Gitlab vulnerabilities
- TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
- TI-2026-58817 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab KEVCVSS 3.1CRITICAL 10.0
- TI-2023-06425 Weak Password Recovery Mechanism for Forgotten Password in GitLab KEVCVSS 3.1CRITICAL 10.0
- TI-2021-05191 Code injection in GitLab KEVCVSS 3.1CRITICAL 10.0
- TI-2021-05161 Server-side request forgery in GitLab KEVCVSS 3.1CRITICAL 9.8
- TI-2022-02763 Injection in GitLab CVSS 3.1CRITICAL 9.9
Sources
- CVE-2025-2937 · CVE Program
- CVE-2025-2937 · NVD
- FIRST EPSS
- GHSA-qfpg-mw2p-44hg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences