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    CVE-2025-23369

    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.

    Published:Jan 21, 2025
    Last Modified:Sep 5, 2025
    EPS:Jan 21, 2025
    EPSS Score:0.07751
    CVSS Score:8.8

    Affected Products

    Vendor
    Github
    Product
    Enterprise Server

    Exploits

    https://github.com/Arian91/CVE-2025-23369_SAML_bypasshttps://github.com/hakivvi/CVE-2025-23369

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High