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.

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)

EPSS: 0.006 (43.9th percentile) — read the EPSS interpretation.

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.

Affected products

Gitlab — versions >=8.4, <14.4.5, >=14.5, <14.5.3, >=14.6, <14.6.2

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

cve@gitlab.com (x_refsource_MISC, Broken Link, Vendor Advisory)
cve@gitlab.com (x_refsource_CONFIRM, 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.