CVE-2026-9312
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4<3.22+ 3 more
- (no CPE)range: <3.22
- cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*range: >=3.16.0,<3.16.19
- cpe:2.3:a:github:enterprise_server:3.21.1:rc1:*:*:*:*:*:*
- (no CPE)range: <3.22, fixed in 3.16.20, 3.17.17, 3.18.11, 3.19.8, 3.20.4, 3.21.1
Patches
Vulnerability mechanics
References
6- docs.github.com/en/enterprise-server@3.16/admin/release-notesnvdProductRelease Notes
- docs.github.com/en/enterprise-server@3.17/admin/release-notesnvdProductRelease Notes
- docs.github.com/en/enterprise-server@3.18/admin/release-notesnvdProductRelease Notes
- docs.github.com/en/enterprise-server@3.19/admin/release-notesnvdProductRelease Notes
- docs.github.com/en/enterprise-server@3.20/admin/release-notesnvdProductRelease Notes
- docs.github.com/en/enterprise-server@3.21/admin/release-notesnvdProductRelease Notes
News mentions
2- ⚡ Weekly Recap: New Linux Flaw, PAN-OS Exploit, AI-Powered Attacks, OAuth Phishing and MoreThe Hacker News · Jun 1, 2026
- GitHub Enterprise Server: Two Critical SSRF Flaws Disclosed in Same-Day AdvisoryVypr Intelligence · May 27, 2026