🔐 CVE Alert

CVE-2023-6159

MEDIUM 6.5

Inefficient Regular Expression Complexity in GitLab

CVSS Score
6.5
EPSS Score
0.2%
EPSS Percentile
43th

An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.

CWE CWE-1333
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Jan 26, 2024
Last Updated May 6, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

GitLab / GitLab
12.7 < 16.6.6 16.7 < 16.7.4 16.8 < 16.8.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
about.gitlab.com: https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/ gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/issues/431924 hackerone.com: https://hackerone.com/reports/2251278

Credits

Thanks [yvvdwf](https://hackerone.com/yvvdwf) for reporting this vulnerability through our HackerOne bug bounty program