CVE-2026-9106 Security feature bypass in Enterprise Server

Medium 4.8 Published 30 Jun 2026 Updated 1 Jul 2026

Attackers can gain unauthorized organization runner management access by exploiting a UI misrepresentation that hides the manage_runners:org OAuth scope from the consent screen.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-9106?

CVE-2026-9106 is a medium-severity vulnerability in Github Enterprise Server, published on 30 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A UI misrepresentation vulnerability was identified in GitHub Enterprise Server that allowed an OAuth application to gain unintended access to an organization's runner management. An attacker could exploit this by creating an OAuth application requesting the manage_runners:org scope and directing a victim user to authorize it, as the scope was not displayed on the authorization consent screen. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, 3.16.20. This vulnerability was reported via the GitHub Bug Bounty program.

Weakness: CWE-451

Which versions are affected by CVE-2026-9106?

It affects 1 product.

Products include Github Enterprise Server.

How do I fix CVE-2026-9106?

No fix has been published for CVE-2026-9106 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9106 being exploited?

There is no known exploitation of CVE-2026-9106 in the wild and no public exploit code.

All Github Enterprise Server vulnerabilities

Sources

Also known as GHSA-gfj9-8v3r-jh2q.