CVE-2025-11990
GitLab vulnerability analysis and mitigation

Overview

GitLab has identified a Client Side Path Traversal vulnerability (CVE-2025-11990) affecting GitLab Enterprise Edition (EE) versions from 18.4 before 18.4.4, and 18.5 before 18.5.2. The vulnerability was discovered and reported through GitLab's HackerOne bug bounty program by security researcher 'swiftee' (GitLab Release).

Technical details

The vulnerability stems from improper input validation in repository references combined with redirect handling weaknesses. The issue has been assigned a CVSS v3.1 Base Score of 3.1 (LOW) with the vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N. The vulnerability is classified under CWE-177 (Improper Handling of URL Encoding) (NVD).

Impact

The vulnerability could allow an authenticated user to gain unauthorized access to CSRF tokens. The impact is limited to confidentiality with no direct impact on integrity or availability of the system (GitLab Release).

Mitigation and workarounds

GitLab has released patches to address this vulnerability in versions 18.4.4 and 18.5.2. Users are strongly recommended to upgrade to these patched versions immediately. GitLab.com is already running the patched version, and GitLab Dedicated customers do not need to take any action (GitLab Release).

Additional resources


SourceThis report was generated using AI

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