Inefficient Regular Expression Complexity in GitLab
Published Aug 13, 2025 · Updated Oct 23, 2026 · Also known as BIT-gitlab-2025-2937
Original summary
Normalized public record · Updated Oct 23, 2026
Inefficient Regular Expression Complexity in GitLab
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- BIT-gitlab-2025-2937
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Aug 13, 2025 · Last refreshed Oct 23, 2026