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CVE-2026-67440— FUXA: Unauthenticated Socket.IO read events

Quick assessment

Affected
frangoteam FUXA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

frangoteam FUXA是frangoteam组织开源的一款工业控制软件。 frangoteam FUXA 1.3.3之前版本存在授权问题漏洞，该漏洞源于server/runtime/index.js中的DEVICE_BROWSE、DEVICE_NODE_ATTRIBUTE、HOST_INTERFACES和DEVICE_TAGS_REQUEST处理程序在启用安全模式时未进行isSocketAdminAuthorized授权检查，可能导致远程未认证或访客用户收集系统发现信息。

CVSS 6.9 · Medium EPSS 0.49% · P40

Affected Version Matrix 1

VendorProduct Version RangeStatus
frangoteam FUXA < 1.3.3 affected
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I. Basic Information for CVE-2026-67440

Vulnerability Information
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Vulnerability Title
FUXA: Unauthenticated Socket.IO read events
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
frangoteam FUXA 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
frangoteam FUXA是frangoteam组织开源的一款工业控制软件。 frangoteam FUXA 1.3.3之前版本存在授权问题漏洞，该漏洞源于server/runtime/index.js中的DEVICE_BROWSE、DEVICE_NODE_ATTRIBUTE、HOST_INTERFACES和DEVICE_TAGS_REQUEST处理程序在启用安全模式时未进行isSocketAdminAuthorized授权检查，可能导致远程未认证或访客用户收集系统发现信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
frangoteam FUXA < 1.3.3 -

II. Public POCs for CVE-2026-67440

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III. Intelligence Information for CVE-2026-67440

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Patches & Fixes for CVE-2026-67440 (1)

Vendor Advisories for CVE-2026-67440 (1)

Vendor Pages for CVE-2026-67440 (1)

Same Patch Batch · frangoteam · 2026-08-18 · 8 CVEs total

CVE-2026-67443 9.2 CRITICAL FUXA: Unauthenticated guest JWT bypasses Node-RED secure-mode authorization gate (Remote S
CVE-2026-47719 8.2 HIGH FUXA: Unauthenticated SSRF via Socket.IO DEVICE_WEBAPI_REQUEST and DEVICE_PROPERTY with re
CVE-2026-65984 7.5 HIGH FUXA: JWT lifecycle flaws allow deleted or demoted users to retain privileged sessions
CVE-2026-47721 6.3 MEDIUM FUXA: Scheduler API missing admin check enables operator-to-admin escalation via scheduled
CVE-2026-65985 6.0 MEDIUM FUXA: SSRF hardening for `device-webapi-request`
CVE-2026-47720 5.3 MEDIUM FUXA: SQL injection in TDengine DAQ connector via backslash bypass of escapeTdString
CVE-2026-67442 2.0 LOW FUXA Business Logic Flaw: Role Deletion Without User Assignment Cleanup

IV. Related Vulnerabilities

Same product: FUXA
Same vendor: frangoteam
Same weakness: CWE-862

V. Comments for CVE-2026-67440

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