CVE-2026-39371 PUBLISHED

RedwoodSDK has a CSRF vulnerability in server function dispatch via GET requests

Assigner: GitHub_M
Reserved: 06.04.2026 Published: 07.04.2026 Updated: 07.04.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
CVSS Score: 8.1

Product Status

Vendor redwoodjs
Product sdk
Versions
  • Version >= 1.0.0-beta.50, < 1.0.6 is affected

References

Problem Types

  • CWE-352: Cross-Site Request Forgery (CSRF) CWE