CVE-2025-23369

moderate-risk
Published 2025-01-21

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.

Do I need to act?

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11.8% chance of exploitation in next 30 days
EPSS score — higher than 88% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Github

References (4)

Release Notes https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.14
Release Notes https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.10
Release Notes https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.7
Release Notes https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.2
46
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 11/34 · Low
Exposure 5/34 · Minimal