Is CVE-2026-39371 actively exploited?

No active exploitation of CVE-2026-39371 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-39371 be exploited remotely?

Yes. CVE-2026-39371 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-39371?

CVE-2026-39371 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-39371

HIGH

CVE-2026-39371

CWE-352Published: April 7, 2026· Updated: Apr 8, 2026

8.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:0.3th

Official 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.

NVD Source

Technical Analysis

CVE-2026-39371 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.