CVE-2026-9106: CWE-451: User Interface (UI) Misrepresentation of Critical Information in GitHub Enterprise Server
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. This vulnerability was reported via the GitHub Bug Bounty program.
AI Analysis
Technical Summary
CVE-2026-9106 is a UI misrepresentation vulnerability (CWE-451) in GitHub Enterprise Server that allowed an OAuth application to request the manage_runners:org scope without displaying this scope on the authorization consent screen. As a result, an attacker could trick a user into authorizing an OAuth app that gains unintended access to manage the organization's runners. This vulnerability affects all GitHub Enterprise Server versions prior to 3.22 and was fixed in versions 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20.
Potential Impact
An attacker could exploit this vulnerability by creating a malicious OAuth application requesting the manage_runners:org scope and convincing a user to authorize it. Because the scope was not shown on the consent screen, the user would be unaware of the elevated permissions granted. This could lead to unauthorized management of organization runners, potentially impacting CI/CD workflows and organizational security. No known exploits in the wild have been reported.
Mitigation Recommendations
Fixed versions are available: 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20. Users should upgrade affected GitHub Enterprise Server instances to these versions or later to remediate the vulnerability. There is no indication that temporary mitigations or workarounds are available or required beyond applying the official fixes.
CVE-2026-9106: CWE-451: User Interface (UI) Misrepresentation of Critical Information in GitHub Enterprise Server
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. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS v4.0
Score 4.8medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9106 is a UI misrepresentation vulnerability (CWE-451) in GitHub Enterprise Server that allowed an OAuth application to request the manage_runners:org scope without displaying this scope on the authorization consent screen. As a result, an attacker could trick a user into authorizing an OAuth app that gains unintended access to manage the organization's runners. This vulnerability affects all GitHub Enterprise Server versions prior to 3.22 and was fixed in versions 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20.
Potential Impact
An attacker could exploit this vulnerability by creating a malicious OAuth application requesting the manage_runners:org scope and convincing a user to authorize it. Because the scope was not shown on the consent screen, the user would be unaware of the elevated permissions granted. This could lead to unauthorized management of organization runners, potentially impacting CI/CD workflows and organizational security. No known exploits in the wild have been reported.
Mitigation Recommendations
Fixed versions are available: 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20. Users should upgrade affected GitHub Enterprise Server instances to these versions or later to remediate the vulnerability. There is no indication that temporary mitigations or workarounds are available or required beyond applying the official fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_P
- Date Reserved
- 2026-05-20T17:12:51.109Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a442fed27e9c79719647445
Added to database: 06/30/2026, 21:06:53 UTC
Last enriched: 06/30/2026, 21:21:46 UTC
Last updated: 06/30/2026, 21:36:47 UTC
Views: 5
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