An issue has been discovered in GitLab affecting all versions starting from 12.4. The regex used for package names is written in a way that makes execution time have quadratic growth based on the length of the malicious input string.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26414
Reference (s):
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26414.json
- URL: https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26414.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/270199
- URL: https://gitlab.com/gitlab-org/gitlab/-/issues/270199