frangoteam FUXA up to 1.3.2 Node-RED index.js authJwt.verify improper authorization

Summaryinfo

A vulnerability categorized as critical has been discovered in frangoteam FUXA up to 1.3.2. This vulnerability affects the function authJwt.verify of the file server/integrations/node-red/index.js of the component Node-RED. Executing a manipulation can lead to improper authorization. This vulnerability is handled as CVE-2026-67443. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in frangoteam FUXA up to 1.3.2. It has been declared as critical. This vulnerability affects the function authJwt.verify of the file server/integrations/node-red/index.js of the component Node-RED. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. In 1.3.2 and earlier, the allowDashboard authorization gate in server/integrations/node-red/index.js calls authJwt.verify for /nodered without inspecting the decoded identity. When nodeRedEnabled is true, secureEnabled is true, and nodeRedAuthMode is secure, a remote unauthenticated attacker can obtain a signed guest token from POST /api/heartbeat and use it to access the RED.httpAdmin editor and flow deployment API. Because the Node-RED configuration has no second adminAuth gate, the attacker can deploy function nodes or invoke fuxa.runScript and runtime.scriptsMgr.runScript, gaining control of FUXA project data, configuration, scripts, filesystem-capable runtime helpers, and potentially operating-system commands when nodeRedUnsafeModules is enabled. This issue is fixed in version 1.3.3.

The advisory is available at github.com. This vulnerability was named CVE-2026-67443 since 07/29/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 1.3.3 eliminates this vulnerability.

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Productinfo

Vendor

• frangoteam

Name

• FUXA

Version

• 1.3.0
• 1.3.1
• 1.3.2

Website

• Product: https://github.com/frangoteam/FUXA/

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