SSRF in GitLab
CVE-2021-39927
Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and 14.6.1 would fail to protect against attacks sending requests to localhost on port 80 or 443 if GitLab was configured to run on a port other than 80 or 443
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% 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 >=8.4, <14.4.5, >=14.5, <14.5.3, >=14.6, <14.6.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/340476 (Broken Link, Vendor Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39927.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39927?
- CVE-2021-39927 is a low-severity vulnerability in GitLab, classified under Server-Side Request Forgery (SSRF). CVSS score: 3.5/10. Published 2022-01-18.
- How severe is CVE-2021-39927?
- Low severity. CVSS v3 base score is 3.5 out of 10.