CVE-2021-39931
First published: Mon Dec 13 2021(Updated: )
An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.11 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Under specific condition an unauthorised project member was allowed to delete a protected branches due to a business logic error.
Credit: cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitLab | >=8.11.0<14.3.6 | |
| GitLab | >=8.11.0<14.3.6 | |
| GitLab | >=14.4.0<14.4.4 | |
| GitLab | >=14.4.0<14.4.4 | |
| GitLab | >=14.5.0<14.5.2 | |
| GitLab | >=14.5.0<14.5.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-39931?
CVE-2021-39931 is rated as a medium severity vulnerability.
How do I fix CVE-2021-39931?
To fix CVE-2021-39931, upgrade GitLab to version 14.3.6 or later, 14.4.4 or later, or 14.5.2 or later.
What versions are affected by CVE-2021-39931?
CVE-2021-39931 affects GitLab versions from 8.11 to 14.3.6, from 14.4 to 14.4.4, and from 14.5 to 14.5.2.
What does CVE-2021-39931 allow unauthorized users to do?
CVE-2021-39931 permits unauthorized project members to delete protected branches under certain conditions.
Is there a workaround for CVE-2021-39931 while waiting for a patch?
Currently, there are no published workarounds for CVE-2021-39931 until the system is updated to a secure version.
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- vendor/gitlab
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- version/gitlab/8.11.0
- version/gitlab/14.4.0
- version/gitlab/14.5.0