Vulnerability in Gitlab
CVE-2021-39917
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.
EPSS: 0.013 (68.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Gitlab — versions >=12.9, <14.3.6, >=14.4, <14.4.4, >=14.5, <14.5.2
Weakness classification (CWE)
References
- cve@gitlab.com (x_refsource_MISC, Broken Link)
- cve@gitlab.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
- cve@gitlab.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39917?
- CVE-2021-39917 is a medium-severity vulnerability in Gitlab, classified under Incorrect Comparison. CVSS score: 4.3/10. Published 2021-12-13.
- How severe is CVE-2021-39917?
- Medium severity. CVSS v3 base score is 4.3 out of 10.