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CVE-2026-65984— FUXA: JWT lifecycle flaws allow deleted or demoted users to retain privileged sessions

Quick assessment

Affected
frangoteam FUXA
Exploitation
Public or AI PoC available; prioritize validation
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之前版本存在会话机制问题漏洞，该漏洞源于会话机制问题，具体为/api/refresh和/api/heartbeat对JWT处理不当，未验证当前数据库记录，可能导致已删除或禁用账户的攻击者继续生成特权JWT，未授权访问用户管理、项目操作、运行时配置和脚本等。

CVSS 7.5 · High EPSS 0.52% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
frangoteam FUXA < 1.3.3 affected
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I. Basic Information for CVE-2026-65984

Vulnerability Information
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Vulnerability Title
FUXA: JWT lifecycle flaws allow deleted or demoted users to retain privileged sessions
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, POST /api/refresh in server/api/auth/index.js falls back from current user data to decoded.groups, including when the user is deleted or groups is zero, and POST /api/heartbeat in server/api/index.js re-signs inbound JWT claims without validating the current database record. An attacker who possesses a previously issued privileged refresh cookie or access token can continue minting privileged JWTs after account deletion, disablement, role removal, or demotion. Continued refresh-cookie rotation can extend the stale session and preserve unauthorized access to user management, project manipulation, runtime configuration, scripts, and backdoor-account creation. 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:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5
Vulnerability Title
frangoteam FUXA 会话机制问题漏洞
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之前版本存在会话机制问题漏洞，该漏洞源于会话机制问题，具体为/api/refresh和/api/heartbeat对JWT处理不当，未验证当前数据库记录，可能导致已删除或禁用账户的攻击者继续生成特权JWT，未授权访问用户管理、项目操作、运行时配置和脚本等。
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-2026-65984

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10665 chars
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III. Intelligence Information for CVE-2026-65984

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Patches & Fixes for CVE-2026-65984 (1)

Vendor Advisories for CVE-2026-65984 (1)

Vendor Pages for CVE-2026-65984 (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-2026-67440 6.9 MEDIUM FUXA: Unauthenticated Socket.IO read events
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-613

V. Comments for CVE-2026-65984

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