CVE-2026-9106

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 4.0

4.8CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

5.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

EPSS

0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-25)

CWE

CWE-451

Published

2026-06-30

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

Affected

• github:enterprise_server

References

• https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.20
• https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.17
• https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.11
• https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.8
• https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.4

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