CVE-2025-23369

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.

Weakness

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/463.html
• https://cwe.mitre.org/data/definitions/475.html

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