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, 3.16.20. 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. It allowed an OAuth application requesting the manage_runners:org scope to hide this scope from the authorization consent screen, potentially tricking users into granting unintended permissions. This vulnerability affects all versions prior to 3.22 and was addressed in patch releases 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20. The vulnerability was responsibly disclosed via the GitHub Bug Bounty program. The CVSS 4.0 base score is 4.8, indicating medium severity, with network attack vector, low privileges required, and user interaction needed.
Potential Impact
An attacker could create a malicious OAuth application requesting the manage_runners:org scope and direct a user to authorize it without the scope being visible on the consent screen. This could result in the attacker gaining unintended access to the organization's runner management capabilities, potentially allowing unauthorized control or manipulation of runners used in CI/CD workflows.
Mitigation Recommendations
A fix is available and has been released in GitHub Enterprise Server versions 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20. Organizations should upgrade to one of these fixed versions or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
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, 3.16.20. 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. It allowed an OAuth application requesting the manage_runners:org scope to hide this scope from the authorization consent screen, potentially tricking users into granting unintended permissions. This vulnerability affects all versions prior to 3.22 and was addressed in patch releases 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20. The vulnerability was responsibly disclosed via the GitHub Bug Bounty program. The CVSS 4.0 base score is 4.8, indicating medium severity, with network attack vector, low privileges required, and user interaction needed.
Potential Impact
An attacker could create a malicious OAuth application requesting the manage_runners:org scope and direct a user to authorize it without the scope being visible on the consent screen. This could result in the attacker gaining unintended access to the organization's runner management capabilities, potentially allowing unauthorized control or manipulation of runners used in CI/CD workflows.
Mitigation Recommendations
A fix is available and has been released in GitHub Enterprise Server versions 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, and 3.16.20. Organizations should upgrade to one of these fixed versions or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
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: 07/08/2026, 12:34:11 UTC
Last updated: 08/13/2026, 00:41:14 UTC
Views: 125
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