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    CVE-2023-22477

    Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.

    Published:Jan 9, 2023
    Last Modified:Mar 10, 2025
    EPS:Jan 9, 2023
    EPSS Score:0.00211
    CVSS Score:5.3

    Affected Products

    Vendor
    Mercurius Project
    Product
    Mercurius

    Exploits

    https://github.com/mercurius-js/mercurius/issues/939https://github.com/mercurius-js/mercurius/issues/939

    Common Weakness Enumeration

    CWE-248 Uncaught Exception

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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