Auth bypass in Frangoteam Fuxa
CVE-2026-72586
A missing authentication vulnerability in frangoteam/FUXA through 1.3.3 allows an unauthenticated remote attacker to query all historical sensor data via the DAQ_QUERY Socket.IO event. When secureEnabled=true, all other sensitive Socket.IO events (DEVICE_BROWSE, HOST_INTERFACES, DEVICE_TAGS_REQUEST, etc.) call isSocketAdminAuthorized to verify the connection token, but the DAQ_QUERY handler in server/runtime/index.js lacks this check entirely.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Frangoteam Fuxa — versions 0
Weakness classification (CWE)
References
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (third-party-advisory)
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (technical-description)
Frequently asked questions
- What is CVE-2026-72586?
- CVE-2026-72586 is a high-severity vulnerability in Frangoteam Fuxa, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-08-10.
- How severe is CVE-2026-72586?
- High severity. CVSS v3 base score is 7.5 out of 10.