VULNERABILITY INTELLIGENCE

CVE-2021-39935

CVSS score6.8 MEDIUM

EPSS probability36.14%

CISA KEVKnown exploited vulnerability

Published2021-12-13

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Known Exploited Vulnerability

GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vulnerability

Vendor / product: GitLab / Community and Enterprise Editions

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API

Weakness classification

nvd@nist.gov: CWE-918
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-918

Primary references

cve@gitlab.com — Third Party Advisory
cve@gitlab.com — Issue Tracking, Vendor Advisory
cve@gitlab.com — Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource