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

CVE-2021-39935

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

CISA KEV SSVC: Active Exploitation
CVSS Base Score
6.8
MEDIUM
Exploitability:2.3
Impact Score:4.0
EPSS Probability:30.50%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
Authentication
Weaponization
SSVC Action

Weaknesses (CWE)

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

Affected Products & Versions

Vendor Product Affected Versions
GitLab GitLab >=10.5, <14.3.6 (affected), >=14.4, <14.4.4 (affected), >=14.5, <14.5.2 (affected)

References & Technical Advisories

No reference links found.

Threat Intelligence Signals

CISA KEV
ACTIVE IN CATALOG
EPSS Score
30.496%

Identity & Timeline

StatusPUBLISHED
Assigning AuthorityGitLab Inc. · Vendor · USA
Reserved2021-08-23T00:00:00
Published2021-12-13T15:47:59
Last Updated2026-02-03T17:20:23

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