CVE-2026-67443: critical vulnerability in frangoteam FUXA
FUXA: Unauthenticated guest JWT bypasses Node-RED secure-mode authorization gate (Remote Script Execution)
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.2epss 0.7%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
frangoteam · FUXARelated CVEs — frangoteam FUXA
In the same product, most dangerous first.
CVE-2026-25895CRITICALFUXA Unauthenticated Remote Code Execution via Arbitrary File Write in Upload APIEPSS 12.8%CVE-2026-25939CRITICALFUXA Unauthenticated Remote Arbitrary Scheduler WriteEPSS 12.5%CVE-2026-47717HIGHFUXA's Unauthenticated Project Data Disclosure Exposes Server-Side Scripts and Device ConfigurationsEPSS 1.4%CVE-2026-25951HIGHFUXA has a Path Traversal Sanitization BypassEPSS 1.4%CVE-2026-25938CRITICALFUXA Unauthenticated Remote Code Execution in Node-RED IntegrationEPSS 1.1%CVE-2026-43947HIGHFUXA Vulnerable to Unauthenticated Remote Code Execution via Script Test Mode Authorization BypassEPSS 0.9%