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OpenAdvisories
High · 7.6 Public exploit CVE-2025-23369 EUVD-2025-3159GHSA-jqqp-8w3h-pwg3

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

Published Jan 21, 2025 · Updated Feb 12, 2025 · Assigned by GitHub_P

Vendor: GitHub Product: Enterprise Server

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.

Affected products

VendorProductAffectedFixed
GitHub Enterprise Server 3.12.0 – ≤ 3.12.13, 3.13.0 – ≤ 3.13.9, 3.14.0 – ≤ 3.14.6, 3.15.0 – ≤ 3.15.1 3.16.0

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 1

References