CVE-2026-67443: FUXA Node-RED authorization bypass

CVE-2026-67443 · Severity: info · CVSS 8.6 · Published 2026-08-18

FUXA is web-based industrial control system software (SCADA/HMI/Dashboard) used to visualize and manage process data. In versions 1.3.2 and earlier, when Node-RED integration is enabled with security features, an unauthenticated attacker can bypass authorization checks and gain full access to deploy malicious flows, execute arbitrary scripts, and potentially run operating system commands, leading to complete compromise of the FUXA system and any connected industrial processes.

Quick answers

Is CVE-2026-67443 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-67443 being exploited in the wild.
How severe is CVE-2026-67443?
Informational severity, with a CVSS score of 8.6, published 18 August 2026.
Which products and versions are affected?
FUXA Team FUXA 1.3.2 and earlier.
Is there a fix for CVE-2026-67443?
A patch was published on 2026-06-14: Fix released in version 1.3.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-67443 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-67443?
Check whether anything you run is named in the advisory. 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 vulnerability is an authentication bypass in the allowDashboard authorization gate for the /nodered endpoint in server/integrations/node-red/index.js. The authJwt.verify function validates JWT signatures but does not inspect the decoded token's identity claims. An attacker can obtain a signed guest token from the unauthenticated POST /api/heartbeat endpoint and reuse it to access the Node-RED RED.httpAdmin editor and flow deployment API. When nodeRedEnabled, secureEnabled, and nodeRedAuthMode=secure are all true, the missing second-layer authorization allows the attacker to deploy function nodes and invoke fuxa.runScript and runtime.scriptsMgr.runScript without further authentication. If nodeRedUnsafeModules is enabled, the attacker can execute arbitrary operating system commands. The fix was released in version 1.3.3.

Affected products

  • FUXA Team FUXA 1.3.2 and earlier

Timeline

  • 2026-08-18: disclosed
  • 2026-06-14: patched: Fix released in version 1.3.3

References

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