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    Dashboard / CVE / CVE-2022-23631

    CVE-2022-23631

    superjson is a program to allow JavaScript expressions to be serialized to a superset of JSON. In versions prior to 1.8.1 superjson allows input to run arbitrary code on any server using superjson input without prior authentication or knowledge. The only requirement is that the server implements at least one endpoint which uses superjson during request processing. This has been patched in superjson 1.8.1. Users are advised to update. There are no known workarounds for this issue.

    Published:Feb 9, 2022
    Last Modified:Feb 24, 2026
    EPS:Feb 9, 2022
    EPSS Score:0.00398
    CVSS Score:9.1

    Affected Products

    Vendor
    Blitzjs
    Product
    Blitz
    Vendor
    Blitzjs
    Product
    Superjson

    Exploits

    https://github.com/advisories/GHSA-5888-ffcr-r425https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425https://www.sonarsource.com/blog/blitzjs-prototype-pollution/https://github.com/advisories/GHSA-5888-ffcr-r425https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425https://www.sonarsource.com/blog/blitzjs-prototype-pollution/

    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