Vulnerability in GitLab
CVE-2021-39909
Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE starting from 11.3 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows an attacker to bypass CODEOWNERS Merge Request approval requirement under rare circumstances
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- GitLab — versions >=11.3, <14.2.6, 14.4.0, >=14.3, <14.3.4
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/335191 (Broken Link)
- hackerone.com/reports/1237750 (Permissions Required, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39909.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39909?
- CVE-2021-39909 is a medium-severity vulnerability in GitLab, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.3/10. Published 2021-11-05.
- How severe is CVE-2021-39909?
- Medium severity. CVSS v3 base score is 5.3 out of 10.