CVE-2026-39371

Summary

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 Software

VendorProductVersion RangeStatus
redwoodjssdk>= 1.0.0-beta.50, < 1.0.6affected

Weaknesses

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

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References