CVE-2026-9312
HIGH WAF: Medium
CVSS 8.2
Published: 2026-05-27
CWE-918
A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to send crafted requests to internal services by exploiting insufficient input validation in an upload endpoint. By injecting path traversal content into request parameters, an attacker could bypass the intended request flow and redirect internal API calls, potentially accessing internal services and exposing sensitive credentials. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.16.20, 3.17.17, 3.18.11, 3.19.8, 3.20.4, and 3.21.1. This vulnerability was reported via the GitHub Bug Bounty program.
WAF Coverage Analysis
Server-Side Request Forgery (SSRF)
Medium WAF Coverage
OWASP: A10:2021 SSRF
934xxx - Node.js / Generic Injection
Affected Software
| Vendor | Product | Version |
|---|---|---|
| github | enterprise_server | 3.16.0 - 3.16.19 |
| github | enterprise_server | 3.17.0 - 3.17.16 |
| github | enterprise_server | 3.18.0 - 3.18.10 |
| github | enterprise_server | 3.19.0 - 3.19.7 |
| github | enterprise_server | 3.20.0 - 3.20.3 |
| github | enterprise_server | 3.21.1 |
References
- docs.github.com (Product, Release Notes)
- docs.github.com (Product, Release Notes)
- docs.github.com (Product, Release Notes)
- docs.github.com (Product, Release Notes)
- docs.github.com (Product, Release Notes)
- docs.github.com (Product, Release Notes)