CVE-2025-23369

Summary

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.

Affected Software

Weaknesses

• CWE-347: CWE-347 Improper Verification of Cryptographic Signature

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

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

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