GitHub Enterprise Server: CVE-2025-23369 Signature Spoofing (3.16.0)
CVE-2025-23369 Published on January 21, 2025
Improper Verification of Cryptographic Signature in GitHub Enterprise Server Allows Signature Spoofing by Improper Validation
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.
Vulnerability Analysis
CVE-2025-23369 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Improper Verification of Cryptographic Signature
The software does not verify, or incorrectly verifies, the cryptographic signature for data.
Products Associated with CVE-2025-23369
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Affected Versions
GitHub Enterprise Server:- Version 3.12.0, <= 3.12.13 is affected.
- Version 3.13.0, <= 3.13.9 is affected.
- Version 3.14.0, <= 3.14.6 is affected.
- Version 3.15.0, <= 3.15.1 is affected.
- Version 3.16.0 is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.