CVE-2021-39935—GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vulnerability

Vulnerability Name

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

Description

GitLab Community and Enterprise Editions contain a server-side request forgery vulnerability which could allow unauthorized external users to perform Server Side Requests via the CI Lint API.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

• https://about.gitlab.com/releases/2021/12/06/security-release-gitlab-14-5-2-released/
• https://nvd.nist.gov/vuln/detail/CVE-2021-39935

Related News Articles

• CISA warns of five-year-old GitLab flaw exploited in attacksFebruary 4, 2026
• CISA Adds Actively Exploited SolarWinds Web Help Desk RCE to KEV CatalogFebruary 4, 2026

Related Weaknesses

• CWE-918