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    CVE-2025-59464

    A memory leak in Node.js’s OpenSSL integration occurs when converting `X.509` certificate fields to UTF-8 without freeing the allocated buffer. When applications call `socket.getPeerCertificate(true)`, each certificate field leaks memory, allowing remote clients to trigger steady memory growth through repeated TLS connections. Over time this can lead to resource exhaustion and denial of service.

    Published:Jan 20, 2026
    Last Modified:Jan 30, 2026
    EPS:Jan 20, 2026
    EPSS Score:0.00058
    CVSS Score:7.5

    Affected Products

    Vendor
    Nodejs
    Product
    Node.js
    Vendor
    Nodejs
    Product
    Nodejs

    Exploits

    No exploit reference

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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