CVE-2023-4658

LOW

GitLab 8.13-16.4.2, 16.5-16.5.2, 16.6 - Incorrect Authorization via Allowed to Merge Permission

Title source: llm
STIX 2.1

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)

Core 2
Core References
Broken Link, Vendor Advisory issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/423835
Permissions Required, Third Party Advisory technical-description exploit permissions-required
https://hackerone.com/reports/2104540

Scores

CVSS v3 3.1
EPSS 0.0006
EPSS Percentile 17.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-863
Status published
Products (5)
gitlab/gitlab 16.6.0
GitLab/GitLab 16.5 - 16.5.3
GitLab/GitLab 16.6 - 16.6.1
GitLab/GitLab 8.13 - 16.4.3
gitlab/gitlab 8.13.0 - 16.4.3
Published Dec 01, 2023
Tracked Since Feb 18, 2026