Improper Verification of Cryptographic Signature in GitHub Enterprise Server Allows Signature Spoofing by Improper Validation
Vulnerability Description
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were not impacted. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.12.14, 3.13.10, 3.14.7, 3.15.2, and 3.16.0. This vulnerability was reported via the GitHub Bug Bounty program.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-23369
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- hakivvi
References
- https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.14
- https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.10
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.7
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.2
More from GitHub
View All →Affected Vendor
GitHub
View all reports →