CVE-2021-39940
First published: Mon Dec 13 2021(Updated: )
An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.2 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. GitLab Maven Package registry is vulnerable to a regular expression denial of service when a specifically crafted string is sent.
Credit: cve@gitlab.com cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitLab | >=13.2.0<14.3.6 | |
| GitLab | >=13.2.0<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 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-39940?
CVE-2021-39940 has been classified as a medium severity vulnerability.
How do I fix CVE-2021-39940?
To mitigate CVE-2021-39940, upgrade GitLab to version 14.3.6 or later, 14.4.4 or later, or 14.5.2 or later.
What versions of GitLab are affected by CVE-2021-39940?
CVE-2021-39940 affects GitLab CE/EE versions between 13.2.0 and 14.3.6, 14.4.0 and 14.4.4, and 14.5.0 and 14.5.2.
What type of attack is possible with CVE-2021-39940?
CVE-2021-39940 allows for a regular expression denial of service attack.
Is CVE-2021-39940 present in all GitLab versions?
No, CVE-2021-39940 is only present in specific versions of GitLab prior to the patched releases.
- agent/author
- agent/type
- agent/references
- agent/weakness
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-api
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/gitlab
- canonical/gitlab
- version/gitlab/13.2.0
- version/gitlab/14.4.0
- version/gitlab/14.5.0