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CVE-2023-5226

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CVE-2023-5226

Published: Dec 1, 2023

Modified: Apr 23, 2026

PUBLISHED

CVSS v3.1

4.8

MEDIUM

Description

An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI.

VendorProductVersions

GitLab

GitLab

affected
0 - < 16.4.3
affected
16.5 - < 16.5.3
affected
16.6 - < 16.6.1

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

References

GitLab Issue #426400
issue-tracking
permissions-required
HackerOne Bug Bounty Report #2173053
technical-description
exploit
permissions-required

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