CVE-2023-4378

Insertion of Sensitive Information Into Sent Data in GitLab

Published Sep 1, 2023 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.8 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A malicious Maintainer can, under specific circumstances, leak the sentry token by changing the configured URL in the Sentry error tracking settings page. This was as a result of an incomplete fix for CVE-2022-4365.

Remediation

Vendor Solution

Upgrade to versions 16.1.5, 16.2.5, 16.3.1 or above.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2023-54242 An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.8 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A malicious Maintainer can, under specific circumstances, leak the sentry token by changing the configured URL in the Sentry error tracking settings page. This was as a result of an incomplete fix for CVE-2022-4365.
History
Type Values Removed Values Added
Weaknesses CWE-200
Type Values Removed Values Added
Title Exposure of Sensitive Information to an Unauthorized Actor in GitLab Insertion of Sensitive Information Into Sent Data in GitLab
Weaknesses CWE-201
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitLab
Published
Updated
Apr 24, 2026, 4:06 AM
Reserved
Aug 16, 2023, 12:01 AM
Status
Modified
Published
Sep 1, 2023, 11:15 AM
Modified
Jun 17, 2026, 6:37 AM