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    CVE-2026-8367

    aria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.

    Published:May 13, 2026
    Last Modified:Aug 19, 2026
    EPS:May 13, 2026
    EPSS Score:0.0011
    CVSS Score:4.8

    Affected Products

    Vendor
    Aria2 Project
    Product
    Aria2

    Exploits

    https://www.tenable.com/security/research/tra-2026-38

    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