CVE-2026-9312
HIGHCVSS v3.1: 8.2 · EPSS: 0.0006 (20.3 percentile)
Source data as of:
At a glance
- Severity
- HIGH
- CVSS
- 8.2 v3.1 · NVD
- EPSS
- 0.0006 (20.3 percentile) · FIRST.org
- CISA KEV
- No
- Type
- SSRF · NVD CWE
- Attack conditions (CVSS vector)
- NetworkNo privilegesNo user interaction · Source: NVD Vector
- Affected vendors
- github
- Published
- 2026-05-27 · Modified: 2026-06-02
- References
- Jump to references (6)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Patch https://docs.github.com/en/[email protected]/admin/release-notes#3.16.20
- Patch https://docs.github.com/en/[email protected]/admin/release-notes#3.17.17
- Patch https://docs.github.com/en/[email protected]/admin/release-notes#3.18.11
- Patch https://docs.github.com/en/[email protected]/admin/release-notes#3.19.8
- Patch https://docs.github.com/en/[email protected]/admin/release-notes#3.20.4
- Patch https://docs.github.com/en/[email protected]/admin/release-notes#3.21.1