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    CVE-2024-52805

    Synapse is an open-source Matrix homeserver. In Synapse before 1.120.1, multipart/form-data requests can in certain configurations transiently increase memory consumption beyond expected levels while processing the request, which can be used to amplify denial of service attacks. Synapse 1.120.1 resolves the issue by denying requests with unsupported multipart/form-data content type.

    Published:Dec 3, 2024
    Last Modified:Aug 26, 2025
    EPS:Dec 3, 2024
    EPSS Score:0.00123
    CVSS Score:7.5

    Affected Products

    Vendor
    Element-hq
    Product
    Synapse
    Vendor
    Matrix
    Product
    Synapse

    Exploits

    No exploit reference

    Related CVEs

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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