What is CVE-2023-5226?

CVE-2023-5226 is a vulnerability in GitLab that allows a malicious actor to bypass branch checks and execute code injection.

What versions of GitLab are affected by CVE-2023-5226?

All versions before 16.4.3, versions starting from 16.5 before 16.5.3, and versions starting from 16.6 before 16.6.1 are affected by CVE-2023-5226.

What is the severity of CVE-2023-5226?

CVE-2023-5226 has a severity rating of 7.5 (High).

Are there any references related to CVE-2023-5226?

Yes, you can find more information about CVE-2023-5226 at the following links: [GitLab issue](https://gitlab.com/gitlab-org/gitlab/-/issues/426400) and [HackerOne report](https://hackerone.com/reports/2173053).

Vulnerability/
CVE-2023-5226

high

7.5

CWE

1/12/2023

18/9/2024

CVE-2023-5226: Improper Control of Generation of Code ('Code Injection') in GitLab

Q: How can a malicious actor exploit CVE-2023-5226?

A malicious actor can bypass prohibited branch checks using a specially crafted branch name to manipulate code execution.

First published: Fri Dec 01 2023(Updated: )

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.

Credit: cve@gitlab.com

Affected Software	Affected Version	How to fix
GitLab	<16.4.3
GitLab	<16.4.3
GitLab	>=16.5.0<16.5.3
GitLab	>=16.5.0<16.5.3
GitLab	=16.6.0
GitLab	=16.6.0

Remedy

Upgrade to versions 16.4.3, 16.5.3, 16.6.1 or above.

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Reference Links

Frequently Asked Questions

What is CVE-2023-5226?
CVE-2023-5226 is a vulnerability in GitLab that allows a malicious actor to bypass branch checks and execute code injection.
What versions of GitLab are affected by CVE-2023-5226?
All versions before 16.4.3, versions starting from 16.5 before 16.5.3, and versions starting from 16.6 before 16.6.1 are affected by CVE-2023-5226.
How can a malicious actor exploit CVE-2023-5226?
A malicious actor can bypass prohibited branch checks using a specially crafted branch name to manipulate code execution.
What is the severity of CVE-2023-5226?
CVE-2023-5226 has a severity rating of 7.5 (High).
Are there any references related to CVE-2023-5226?
Yes, you can find more information about CVE-2023-5226 at the following links: [GitLab issue](https://gitlab.com/gitlab-org/gitlab/-/issues/426400) and [HackerOne report](https://hackerone.com/reports/2173053).

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agent/last-modified-date
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vendor/gitlab
canonical/gitlab
version/gitlab/16.5.0
version/gitlab/16.6.0

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