CVE-2023-4658

Incorrect Authorization in GitLab

Published Dec 1, 2023 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Description
An issue has been discovered in GitLab EE affecting all versions starting from 8.13 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for an attacker to abuse the `Allowed to merge` permission as a guest user, when granted the permission through a group.

Remediation

Vendor Solution

Upgrade to versions 16.4.3, 16.5.3, 16.6.1 or above.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-54510 An issue has been discovered in GitLab EE affecting all versions starting from 8.13 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for an attacker to abuse the `Allowed to merge` permission as a guest user, when granted the permission through a group.
History
Type Values Removed Values Added
Weaknesses CWE-284
Type Values Removed Values Added
Title Improper Access Control in GitLab Incorrect Authorization in GitLab
Weaknesses CWE-863
Type Values Removed Values Added
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitLab
Published
Updated
Apr 26, 2026, 4:06 AM
Reserved
Aug 31, 2023, 5:30 AM
Status
Modified
Published
Dec 1, 2023, 7:15 AM
Modified
Jun 17, 2026, 6:38 AM