CVE-2025-6601: gitlab — Fix

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.3, and 18.5 before 18.5.1 that under certain conditions could have allowed authenticated users to gain unauthorized project access by exploiting the access request approval workflow.

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CVSS v3.1 Score

2.7

LOW

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

Weakness Type (CWE)

CWE-840 CWE-840

Affected Products

Vendor	Product	Versions
gitlab	gitlab	18.4.0 — 18.4.3
gitlab	gitlab	All

References

Advisories & Patches

https://about.gitlab.com/releases/2025/10/22/patch-release-gitlab-18-5-1-released/

Other References

https://gitlab.com/gitlab-org/gitlab/-/issues/551267 https://hackerone.com/reports/3209641

Frequently Asked Questions

What is CVE-2025-6601? +

GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.3, and 18.5 before 18.5.1 that under certain conditions could have allowed authenticated users to gain unauthorized project access by exploiting the access request approval workflow. It has a CVSS v3.1 base score of 2.7 (LOW).

How severe is CVE-2025-6601? +

CVE-2025-6601 has a CVSS v3.1 score of 2.7 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-6601? +

CVE-2025-6601 affects products from gitlab, specifically: gitlab. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-6601? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-6601