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CVE-2025-23369

Improper Verification of Cryptographic Signature in GitHub Enterprise Server Allows Signature Spoofing by Improper Validation

Published: Jan 21, 2025Updated: Sep 5, 2025 Sources: CVE List NVD BDUCWE-347
NVD MITRE
8.8CVSSHIGH
EPSS Score
1.6%
Top 28.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-347

Affected Products

enterprise servergithubDevTools & CI
Enterprise ServerGitHubDevTools & CI
GitHub Enterprise ServerGitHub Inc
SaaS
DevTools & CI / source-control
githubcommercialUSDevTools & CIaka github
github inccommercialUSDevTools & CIaka github

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.14
docs.github.com
https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.10
docs.github.com
https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.7
docs.github.com
and 1 more references View all →

Timeline

Published
Jan 21, 2025
Last Updated
Sep 5, 2025

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