# CVE-2026-9312: Server-Side Request Forgery vulnerability in GitHub Enterprise Server allowed access to internal services via path traversal in upload endpoint

> CVE-2026-9312: Server-Side Request Forgery vulnerability in GitHub Enterprise Server allowed access to internal services via path traversal in upload endpoint. CVSS 8.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-9312
Last updated: 2026-07-23T11:10:00Z

- Published: 2026-05-27 00:02 UTC · Updated: 2026-07-23 11:10 UTC · Assigner: GitHub\_P
- CVSS: 8.2 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
- EPSS: 9.2%, 95th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-918

## 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 3.17.17, 3.18.11, 3.19.8, 3.20.4, and 3.21.2. This vulnerability was reported via the GitHub Bug Bounty program.

## Affected vendors and products

- GitHub: Enterprise Server

## Tracked companies

- [GitHub](https://rewindex.com/company/github.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-9312)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-9312)
- [https://docs.github.com/en/enterprise-server@3.17/admin/release-notes\#3.17.17](https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.17)
- [https://docs.github.com/en/enterprise-server@3.18/admin/release-notes\#3.18.11](https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.11)
- [https://docs.github.com/en/enterprise-server@3.19/admin/release-notes\#3.19.8](https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.8)
- [https://docs.github.com/en/enterprise-server@3.20/admin/release-notes\#3.20.4](https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.4)
- [https://docs.github.com/en/enterprise-server@3.21/admin/release-notes\#3.21.2](https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.2)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-9312 · Markdown: https://rewindex.com/cve/CVE-2026-9312.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-9312 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:34.408Z