Vulnerability in GitLab
CVE-2021-39880
A Denial Of Service vulnerability in the apollo_upload_server Ruby gem in GitLab CE/EE all versions starting from 11.9 before 14.0.9, all versions starting from 14.1 before 14.1.4, and all versions starting from 14.2 before 14.2.2 allows an attacker to deny access to all users via specially crafted requests to the apollo_upload_server middleware.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.018 · change: +0.005
Affected products
- GitLab — versions >=14.2, <14.2.2, >=14.1, <14.1.4, >=11.9, <14.0.9
References
- gitlab.com/gitlab-org/gitlab/-/issues/330561 (Broken Link)
- hackerone.com/reports/1181284 (Permissions Required, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39880.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39880?
- CVE-2021-39880 is a medium-severity vulnerability in GitLab. CVSS score: 6.5/10. Published 2021-10-05.
- How severe is CVE-2021-39880?
- Medium severity. CVSS v3 base score is 6.5 out of 10.