CVE•Published 2026-04-07•Modified 2026-05-05•1 article on news•6 live references•NVD data

CVE-2026-39371Redwoodjs · Redwoodsdk

Vulnerability data via NVD (ingested)

CVSS v3.1

8.1

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 100% of all CVEs

Weaknesses (CWE)

CWE-352Cross-Site Request Forgery (CSRF)

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.

Timeline

Published 2026-04-07

Modified 2026-05-05

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-39371

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Redwoodjs Redwoodsdk"

All exposed Redwoodjs Redwoodsdk instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Redwoodsdk"

HTTP body or banner mentions "Redwoodsdk" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-39371