CVE-2026-39371

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

State: Published
Severity: 8.1 High
Published: Apr 7, 2026
Updated: Apr 8, 2026
Reserved: Apr 6, 2026

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.

Scores

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

Weaknesses

CWE-352 Cross-Site Request Forgery (CSRF)

Affected Products

Product	Versions
sdkredwoodjs	>= 1.0.0-beta.50, < 1.0.6Affected

References

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

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