CVE-2023-3909 (GCVE-0-2023-3909)
Vulnerability from cvelistv5
Published
2023-11-06 12:08
Modified
2025-11-20 04:08
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file.
References
https://gitlab.com/gitlab-org/gitlab/-/issues/418763 issue-tracking, permissions-required
https://hackerone.com/reports/2050269 technical-description, exploit, permissions-required
Impacted products
Vendor Product Version
GitLab GitLab Version: 12.3   ≤
Version: 16.4   ≤
Version: 16.5   ≤
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
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