CVE-2021-39943
First published: Wed Feb 09 2022(Updated: )
An authorization logic error in the External Status Check API in GitLab EE affecting all versions starting from 14.1 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allowed a user to update the status of the check via an API call
Credit: cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitLab | >=14.1.0<14.3.6 | |
| GitLab | >=14.4.0<14.4.4 | |
| GitLab | >=14.5.0<14.5.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-39943?
CVE-2021-39943 is classified as a medium severity vulnerability due to its potential impact on user authorization.
What versions of GitLab are affected by CVE-2021-39943?
CVE-2021-39943 affects GitLab EE versions starting from 14.1 before 14.3.6, from 14.4 before 14.4.4, and from 14.5 before 14.5.2.
How do I fix CVE-2021-39943?
To fix CVE-2021-39943, upgrade GitLab EE to version 14.3.6 or later, 14.4.4 or later, or 14.5.2 or later.
What impact does CVE-2021-39943 have on my GitLab instance?
CVE-2021-39943 can allow unauthorized users to update the status of checks via an API call, which could lead to manipulation of critical workflows.
Is there a workaround for CVE-2021-39943 while I update GitLab?
There is no official workaround for CVE-2021-39943; the recommended action is to apply the necessary updates as soon as possible.
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- agent/software-canonical-lookup-request
- vendor/gitlab
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- version/gitlab/14.1.0
- version/gitlab/14.4.0
- version/gitlab/14.5.0