---
title: "CVE-2026-96890: GitHub Enterprise Server - Server-Side Request Forgery"
description: "GitHub Enterprise Server 3.20, 3.21, and 3.22 contain a server-side request forgery caused by the secret scanning validator trusting token endpoints in committed credentials, letting authenticated repository contributors cause requests to attacker-controlled internal hosts, exploit requires authenticated user with push permission and GitHub Advanced Security enabled."
url: https://panop.io/threat-heartbeat/CVE-2026-96890/
---

# CVE-2026-96890 GitHub Enterprise Server - Server-Side Request Forgery

GitHub Enterprise Server 3.20, 3.21, and 3.22 contain a server-side request forgery caused by the secret scanning validator trusting token endpoints in committed credentials, letting authenticated repository contributors cause requests to attacker-controlled internal hosts, exploit requires authenticated user with push permission and GitHub Advanced Security enabled.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.48% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-96890)

## Details

Type

Server-Side Request Forgery

Impact

Remote Code Execution, Server Side Request Forgery

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

6 October 2026

Updated

15 October 2026

Weakness

[CWE-918](https://cwe.mitre.org/data/definitions/918.html)

## Vendor fix

Update to versions 3.20.9, 3.21.7, 3.22.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-96890](https://nvd.nist.gov/vuln/detail/CVE-2026-96890)
- [https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.9](https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.9)
- [https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.7](https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.7)
- [https://docs.github.com/en/enterprise-server@3.22/admin/release-notes#3.22.2](https://docs.github.com/en/enterprise-server@3.22/admin/release-notes#3.22.2)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)