UpHeron
All vulnerabilities

Servers and applications

CVE-2021-39917

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.

Severity
Medium 6.5
Published
13 Dec 2021
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
14.3.6, 14.4.4, 14.5.2
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • From 12.9.0 before 14.3.6
  • From 14.4.0 before 14.4.4
  • From 14.5.0 before 14.5.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-39917
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-39917