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    CVE-2026-39371

    RedwoodSDK is a server-first React framework. From 1.0.0-beta.50 to 1.0.5, erver functions exported from "use server" files could be invoked via GET requests, bypassing their intended HTTP method. In cookie-authenticated applications, this allowed cross-site GET navigations to trigger state-changing functions, because browsers send SameSite=Lax cookies on top-level GET requests. This affected all server functions -- both serverAction() handlers and bare exported functions in "use server" files. This vulnerability is fixed in 1.0.6.

    Published:Apr 7, 2026
    Last Modified:May 5, 2026
    EPS:Apr 7, 2026
    EPSS Score:0.00006
    CVSS Score:8.1

    Affected Products

    Vendor
    Redwoodjs
    Product
    Redwoodsdk
    Vendor
    Redwoodjs
    Product
    Sdk

    Exploits

    https://github.com/zebbernCVE/CVE-2026-39371

    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