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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.

PUBLISHED Reserved 2026-04-06 | Published 2026-04-07 | Updated 2026-04-08 | Assigner GitHub_M




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

Problem types

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

Product status

>= 1.0.0-beta.50, < 1.0.6
affected

References

github.com/...js/sdk/security/advisories/GHSA-x8rx-789c-2pxq

cve.org (CVE-2026-39371)

nvd.nist.gov (CVE-2026-39371)

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