CVE-2025-23369

EUVD-2025-3159
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 93%
Affected Products (NVD)
VendorProductVersion
githubenterprise_server
𝑥
< 3.12.14
githubenterprise_server
3.13.0 ≤
𝑥
< 3.13.10
githubenterprise_server
3.14.0 ≤
𝑥
< 3.14.7
githubenterprise_server
3.15.0 ≤
𝑥
< 3.15.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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