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    CVE-2016-2402

    OkHttp before 2.7.4 and 3.x before 3.1.2 allows man-in-the-middle attackers to bypass certificate pinning by sending a certificate chain with a certificate from a non-pinned trusted CA and the pinned certificate.

    Published:Jan 30, 2017
    Last Modified:Apr 20, 2025
    EPS:Jan 30, 2017
    EPSS Score:0.02681
    CVSS Score:5.9

    Affected Products

    Vendor
    Squareup
    Product
    Okhttp
    Vendor
    Squareup
    Product
    Okhttp3

    Exploits

    https://github.com/ikoz/cert-pinning-flaw-pochttps://github.com/ikoz/certPinningVulnerableOkHttp

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

    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