CVE-2023-4658

LOW

Gitlab < 16.4.3 - Incorrect Authorization

Title source: rule

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.

References (2)

[Broken Link, Vendor Advisory] https://gitlab.com/gitlab-org/gitlab/-/issues/423835

[Permissions Required, Third Party Advisory] https://hackerone.com/reports/2104540

Scores

CVSS v3 3.1

EPSS 0.0005

EPSS Percentile 15.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Classification

CWE

CWE-863

Status published

Affected Products (2)

gitlab/gitlab < 16.4.3

gitlab/gitlab

Timeline

Published Dec 01, 2023

Tracked Since Feb 18, 2026