What is the severity of CVE-2021-39903?

CVE-2021-39903 is considered a high severity vulnerability due to its potential to change project visibility settings by privileged users.

How do I fix CVE-2021-39903?

To mitigate CVE-2021-39903, upgrade GitLab to version 14.4.0 or later, or apply any available patches.

What versions of GitLab are affected by CVE-2021-39903?

CVE-2021-39903 affects all GitLab CE/EE versions from 13.0.0 up to but not including 14.2.6 as well as specific versions between 14.3.0 and 14.3.4.

What protections does GitLab provide against CVE-2021-39903?

GitLab provides the ability for instance administrators to restrict visibility settings, but this vulnerability allows privileged users to bypass those restrictions.

Who is impacted by CVE-2021-39903?

Privileged users on GitLab instances configured with restricted project visibility are directly impacted by CVE-2021-39903.

Vulnerability/
CVE-2021-39903

medium

6.5

4/11/2021

4/8/2024

CVE-2021-39903

First published: Thu Nov 04 2021(Updated: )

In all versions of GitLab CE/EE since version 13.0, a privileged user, through an API call, can change the visibility level of a group or a project to a restricted option even after the instance administrator sets that visibility option as restricted in settings.

Credit: cve@gitlab.com

Affected Software	Affected Version	How to fix
GitLab	>=13.0.0<14.2.6
GitLab	>=13.0.0<14.2.6
GitLab	>=14.3.0<14.3.4
GitLab	>=14.3.0<14.3.4
GitLab	=14.4.0
GitLab	=14.4.0

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Frequently Asked Questions

What is the severity of CVE-2021-39903?
CVE-2021-39903 is considered a high severity vulnerability due to its potential to change project visibility settings by privileged users.
How do I fix CVE-2021-39903?
To mitigate CVE-2021-39903, upgrade GitLab to version 14.4.0 or later, or apply any available patches.
What versions of GitLab are affected by CVE-2021-39903?
CVE-2021-39903 affects all GitLab CE/EE versions from 13.0.0 up to but not including 14.2.6 as well as specific versions between 14.3.0 and 14.3.4.
What protections does GitLab provide against CVE-2021-39903?
GitLab provides the ability for instance administrators to restrict visibility settings, but this vulnerability allows privileged users to bypass those restrictions.
Who is impacted by CVE-2021-39903?
Privileged users on GitLab instances configured with restricted project visibility are directly impacted by CVE-2021-39903.

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