Vulnerability in GitLab
CVE-2021-39871
In all versions of GitLab CE/EE since version 13.0, an instance that has the setting to disable Bitbucket Server import enabled is bypassed by an attacker making a crafted API call.
Published · last modified .
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:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (59.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- GitLab — versions 4.3.0, >=14.3, <14.3.1, >=13.0, <14.1.7
References
- gitlab.com/gitlab-org/gitlab/-/issues/340782 (Broken Link)
- hackerone.com/reports/630263 (Permissions Required, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39871.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39871?
- CVE-2021-39871 is a medium-severity vulnerability in GitLab. CVSS score: 4.3/10. Published 2021-10-04.
- How severe is CVE-2021-39871?
- Medium severity. CVSS v3 base score is 4.3 out of 10.