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

GitLab Community and Enterprise Editions

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. Added to CISA KEV on 2026-02-03 (federal deadline 2026-02-24).

First seen: 3 Feb 2026
Last update: 3 Feb 2026, 12:00 UTC
Identifiers: CVE-2021-39935
Source: CISA KEV
On the menu as: GitLab

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: GitLab Community and Enterprise Editions
Ids: CVE-2021-39935

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. Added to CISA KEV on 2026-02-03 (federal deadline 2026-02-24).

## Steps
1. This touches infrastructure (gitlab). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2021-39935") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://about.gitlab.com/releases/2021/12/06/security-release-gitlab-14-5-2-released/ https://nvd.nist.gov/vuln/detail/CVE-2021-39935
https://pwned.coffee/i/gitlab-community-and-enterprise-editions-server-side-req-cve-2021-39935

Sources

Totalone hot coffee