CVE-2021-39917
6.5
MEDIUM
CVSS 3.1
EPSS 0.39%
Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression related to quick actions features was susceptible to catastrophic backtracking that could cause a DOS attack.
How to fix CVE-2021-39917
To remediate CVE-2021-39917, upgrade the affected package to a fixed version below.
- —upgrade to 14.3.6 or later
Is CVE-2021-39917 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 12.9.0, < 14.3.6, >= 14.4.0, < 14.4.4, >= 14.5.0, < 14.5.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |