CVE-2023-6159

Name: CVE-2023-6159
Creator: NVD / NIST
Published: 2024-01-26T02:15:07.567+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.99%

Last modified Jun 17, 2026

CVE-2023-6159 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.99%

57.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 12.7.0, < 16.6.6
Gitlab	Gitlab	>= 16.7.0, < 16.7.4
Gitlab	Gitlab	16.8.0

References

https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/431924Broken Link
https://hackerone.com/reports/2251278Permissions Required
https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/431924Broken Link
https://hackerone.com/reports/2251278Permissions Required

Timeline

Published: Jan 26, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6159?

How severe is CVE-2023-6159?

CVE-2023-6159 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6159?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6159?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST