GitLab CE/EE Reporter Privilege Leak via Packages API v13.2-18.5.1
CVE-2025-6171 Published on November 15, 2025
Missing Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.2 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker with reporter access to view branch names and pipeline details by accessing the packages API endpoint even when repository access was disabled.
Vulnerability Analysis
CVE-2025-6171 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2025-6171 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2025-6171
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Affected Versions
GitLab:- Version 13.2 and below 18.3.6 is affected.
- Version 18.4 and below 18.4.4 is affected.
- Version 18.5 and below 18.5.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.