Executive Summary

This vulnerability in GitLab Enterprise Edition (EE) versions before certain patched releases allows an authenticated user to leak IP addresses of other users who are viewing Code Quality reports. The leak occurs through specially crafted content within these reports.

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Impact Analysis

The vulnerability can lead to unauthorized disclosure of IP addresses of users viewing Code Quality reports. This could potentially expose user location or network information to an attacker with authenticated access, which may be used for further targeted attacks or privacy violations.

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Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab EE to a fixed version. Specifically, update to version 18.8.9 or later if you are on the 18.8.x branch, 18.9.5 or later if on the 18.9 branch, or 18.10.3 or later if on the 18.10 branch.

This will prevent authenticated users from leaking IP addresses of users viewing Code Quality reports via specially crafted content.

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Compliance Impact

This vulnerability could potentially impact compliance with data protection regulations such as GDPR and HIPAA because it allows an authenticated user to leak IP addresses of users viewing Code Quality reports. IP addresses are considered personal data under GDPR, and unauthorized disclosure could lead to violations of privacy and data protection requirements.

However, the provided information does not explicitly state the compliance implications or whether this vulnerability has been linked to any regulatory breaches.

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