Vulnerability Database

308,485

Total vulnerabilities in the database

CVE-2021-39933

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.10 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 used for handling user input (notes, comments, etc) was susceptible to catastrophic backtracking that could cause a DOS attack.

  • Published: Dec 13, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-39933
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v2:

  • Severity: Low
  • Score: 4
  • AV:N/AC:L/Au:S/C:N/I:N/A:P

CWEs:

Software From Fixed in
gitlab / gitlab 14.4.0 14.4.4
gitlab / gitlab 14.5.0 14.5.2
gitlab / gitlab 12.10.0 14.3.6