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CVE-2026-39371— RedwoodSDK has a CSRF vulnerability in server function dispatch via GET requests

Quick assessment

Affected
redwoodjs sdk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RedwoodSDK是RedwoodJS开源的一个基于React的服务器优先Web应用框架。 RedwoodSDK 1.0.0-beta.50至1.0.5版本存在跨站请求伪造漏洞，该漏洞源于服务器函数可通过GET请求调用，可能导致跨站点GET导航触发状态更改函数。

CVSS 8.1 · High EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-39371

Vulnerability Information
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Vulnerability Title
RedwoodSDK has a CSRF vulnerability in server function dispatch via GET requests
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
RedwoodSDK 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RedwoodSDK是RedwoodJS开源的一个基于React的服务器优先Web应用框架。 RedwoodSDK 1.0.0-beta.50至1.0.5版本存在跨站请求伪造漏洞，该漏洞源于服务器函数可通过GET请求调用，可能导致跨站点GET导航触发状态更改函数。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
redwoodjs sdk >= 1.0.0-beta.50, < 1.0.6 -

II. Public POCs for CVE-2026-39371

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III. Intelligence Information for CVE-2026-39371

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IV. Related Vulnerabilities

Same product: sdk
Same vendor: redwoodjs
Same weakness: CWE-352

V. Comments for CVE-2026-39371

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