CVE-2026-42922: FUXA /nodered authorization bypass to RCE

CVE-2026-42922 · Severity: critical · CVSS 9.8 · Published 2026-10-29

FUXA is an open-source HMI (human-machine interface) software that allows users to build dashboards for monitoring and controlling industrial processes. The software optionally integrates Node-RED, a visual programming tool for automation. An unauthenticated attacker can bypass authorization checks and gain access to Node-RED, allowing them to deploy malicious flows that execute arbitrary code on the server running FUXA.

Technologies: Frangoteam FUXA. Vendors: Frangoteam.

Quick answers

Is CVE-2026-42922 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-42922 being exploited in the wild.
How severe is CVE-2026-42922?
Critical severity, with a CVSS score of 9.8, published 29 October 2026.
Which products and versions are affected?
Frangoteam FUXA 1.3.2-2809.
Is there a fix for CVE-2026-42922?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-42922 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-42922?
Check whether you run Frangoteam FUXA at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The /nodered authorization callback fails to properly restrict access based on identity, accepting any valid JWT token regardless of permission level. An unauthenticated user can obtain a guest JWT from the /api/heartbeat endpoint, which the authorization callback accepts as valid, allowing unauthorized access to Node-RED functionality and subsequent arbitrary code execution through malicious flow deployment.

Affected products

  • frangoteam FUXA 1.3.2-2809

Timeline

  • 2026-10-29: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.