RedwoodSDK has a CSRF vulnerability in server function dispatch via GET requests
Summary
Server 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.
Impact
An attacker could construct a URL containing a known action ID and JSON-encoded arguments. When a victim with an active session visited or was redirected to this URL, the function executed with the victim's credentials. This affected any server function that performs state-changing operations (writes, deletes, mutations) in applications using cookie-based authentication.
Remediation
Update to rwsdk 1.0.6. No application code changes are required.
The fix enforces the declared HTTP method at dispatch time. GET requests to server functions that require POST now return 405 Method Not Allowed.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | rwsdk | >= 1.0.0-beta.50, < 1.0.6 | 1.0.6 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H- Weakness (CWE)
CWE-352- Platform
- npm
- Package
rwsdk- Disclosed
- 08.04.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-x8rx-789c-2pxq - CC BY 4.0
Vulnerability history: rwsdk
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 04.2026 04.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2026: 2
-
RedwoodSDK has a CSRF vulnerability in server function dispatch via GET requests this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.