GitLab GraphQL WebSocket info leak CVE-2025-2615 (18.3.6, 18.4.4, 18.5.2)
CVE-2025-2615 Published on November 15, 2025
Insertion of Sensitive Information Into Sent Data in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2, that could have allowed a blocked user to access sensitive information by establishing GraphQL subscriptions through WebSocket connections.
Vulnerability Analysis
CVE-2025-2615 can be exploited with network access, and requires small amount of user privileges. 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
Insertion of Sensitive Information Into Sent Data
The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor. Sensitive information could include data that is sensitive in and of itself (such as credentials or private messages), or otherwise useful in the further exploitation of the system (such as internal file system structure).
Products Associated with CVE-2025-2615
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Affected Versions
GitLab:- Version 16.7 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.