CVE-2026-39371 — RedwoodSDK has a CSRF vulnerability in server function dispatch via GET requests

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
redwoodjs / sdk	affected >= 1.0.0-beta.50, < 1.0.6

CWE

CWE-352

References

https://github.com/redwoodjs/sdk/security/advisories/GHSA-x8rx-789c-2pxq

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.