CVE-2023-3920

Incorrect Authorization in GitLab

Published Sep 29, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
An issue has been discovered in GitLab affecting all versions starting from 11.2 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible that a maintainer to create a fork relationship between existing projects contrary to the documentation.

Remediation

Vendor Solution

Upgrade to version 16.4.1, 16.3.5, 16.2.8

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-44546 An issue has been discovered in GitLab affecting all versions starting from 11.2 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible that a maintainer to create a fork relationship between existing projects contrary to the documentation.
History
Type Values Removed Values Added
Weaknesses CWE-345
Type Values Removed Values Added
Title Insufficient Verification of Data Authenticity in GitLab Incorrect Authorization in GitLab
Weaknesses CWE-863
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', '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
Aug 14, 2026, 4:11 AM
Reserved
Jul 25, 2023, 10:30 AM
Status
Analyzed
Published
Sep 29, 2023, 7:15 AM
Modified
Jun 17, 2026, 6:15 AM