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

- Exploited (CISA KEV): yes, added 2026-02-03
- Published: 2021-12-13
- CVSS: 6.8 MEDIUM (v3.1)
- EPSS: 36.1% (98th percentile)
- CWE: CWE-918

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

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Before feed history | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | Before feed history | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2021-39935 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2021-39935