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High · 8.1 Public exploit CVE-2026-39371 EUVD-2026-19888GHSA-x8rx-789c-2pxq

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

Published Apr 7, 2026 · Updated Apr 8, 2026 · Assigned by GitHub_M

Vendor: redwoodjs Product: sdk Package: rwsdk Ecosystem: npm

Description

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 products

VendorProductAffectedFixed
redwoodjs sdk >= 1.0.0-beta.50, < 1.0.6 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
npm rwsdk >= 1.0.0-beta.50, < 1.0.6 1.0.6 GHSA-x8rx-789c-2pxq

References