Vulnerability Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression related to quick actions features was susceptible to catastrophic backtracking that could cause a DOS attack.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 12.9.0, < 14.3.6 |
Related Weaknesses (CWE)
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/338486Broken Link
- https://hackerone.com/reports/1277918Permissions RequiredThird Party Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/338486Broken Link
- https://hackerone.com/reports/1277918Permissions RequiredThird Party Advisory
FAQ
What is CVE-2021-39917?
CVE-2021-39917 is a vulnerability with a CVSS score of 4.3 (MEDIUM). An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A re...
How severe is CVE-2021-39917?
CVE-2021-39917 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39917?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.