CVE-2026-67440
Received Received - Intake

Information Disclosure in FUXA SCADA/HMI Software

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: GitHub, Inc.

Description
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. In 1.3.2 and earlier, the DEVICE_BROWSE, DEVICE_NODE_ATTRIBUTE, HOST_INTERFACES, and DEVICE_TAGS_REQUEST handlers in server/runtime/index.js return device-discovery, node-attribute, host-network-interface, and device-tag metadata without isSocketAdminAuthorized when secureEnabled is true. A remote unauthenticated or guest user can invoke these metadata-oriented Socket.IO events and collect system-discovery information that is not required for normal public HMI viewing, while ordinary device status, value, alarm, and dashboard events remain intentionally public. This issue is fixed in version 1.3.3.

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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-19
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
CVE-2026-67440
EUVD
EUVD-2026-61210

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
fuxa fuxa 1.3.3
frangoteam fuxa to 1.3.3 (exc)
frangoteam fuxa 1.3.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

FUXA is a web-based Process Visualization software. In versions 1.3.2 and earlier, certain handlers in server/runtime/index.js return metadata like device-discovery, node-attribute, host-network-interface, and device-tag information without proper authorization checks when secureEnabled is true. This allows remote unauthenticated or guest users to access sensitive system-discovery details that are not needed for normal HMI viewing.

Detection Guidance

Check if FUXA version 1.3.2 or earlier is running. Inspect network traffic for unauthorized Socket.IO events like DEVICE_BROWSE, DEVICE_NODE_ATTRIBUTE, HOST_INTERFACES, or DEVICE_TAGS_REQUEST. Monitor for unusual metadata collection attempts.

Impact Analysis

This vulnerability allows attackers to collect sensitive system-discovery information remotely without authentication. This could expose internal network structures, device configurations, and other metadata that should remain private, potentially aiding further attacks or unauthorized access.

Mitigation Strategies

Upgrade FUXA to version 1.3.3 or later immediately. Disable guest or unauthenticated access if secureEnabled is true. Review Socket.IO event handlers to ensure proper authorization checks are enforced.

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