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CVE-2026-9312 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://docs.github.com/en/[email protected]/admin/release-notes#3.17.17	[email protected]	ProductRelease Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.18.11	[email protected]	ProductRelease Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.19.8	[email protected]	ProductRelease Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.20.4	[email protected]	ProductRelease Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.21.2	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-918	Server-Side Request Forgery (SSRF)	[email protected]

Affected Products

Product	Versions
github enterprise server	>= 3.16.0, < 3.16.19 >= 3.17.0, < 3.17.16 >= 3.18.0, < 3.18.10 >= 3.19.0, < 3.19.7 >= 3.20.0, < 3.20.3
CPE cpe:2.3:a:github:enterprise_server:::::::: cpe:2.3:a:github:enterprise_server:3.21.1:rc1:::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jul 23, 2026	CVE Translated	[email protected]
Jun 30, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 2, 2026	Initial Analysis	[email protected]
May 27, 2026	New CVE Received	[email protected]