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    CVE-2026-78667

    When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.

    Published:Oct 8, 2026
    Last Modified:Oct 9, 2026
    EPS:Oct 8, 2026
    EPSS Score:
    CVSS Score:7.5

    Affected Products

    Vendor
    Go Standard Library
    Product
    Net/http

    Exploits

    No exploit reference

    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