cve/2023/CVE-2023-3900.md

### [CVE-2023-3900](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3900)
![](https://img.shields.io/static/v1?label=Product&message=GitLab&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=16.1%3C%2016.1.3%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-20%3A%20Improper%20Input%20Validation&color=brighgreen)

### Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. An invalid 'start_sha' value on merge requests page may lead to Denial of Service as Changes tab would not load.

### POC

#### Reference
- https://gitlab.com/gitlab-org/gitlab/-/issues/418770

#### Github
No PoCs found on GitHub currently.