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CVE-2026-39371

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

CVSS 8.1 HIGHEPSS 0.2%CWE-352
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.1EPSS 0.2%KEV nãoPoC Nuclei Metasploit Patch
Lifecycle
07 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Affected products
redwoodjs · sdk