Vulnerability in Avaiga Taipy
CVE-2026-85183
Taipy configures its socket.io server with wildcard CORS origin and credential flag enabled, allowing any web page to establish credentialed WebSocket connections to victim applications. Attackers can open socket.io sessions from arbitrary domains and invoke state variable modifications and action callbacks without CSRF protection.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/Avaiga/taipy (product)
- gui/server.py at 4.1.1 (technical-description)
- GitHub Issue #2890 (issue-tracking)
- VulnCheck Advisory: Taipy through 4.1.1 Cross-Site WebSocket Hijacking via Wildcard socket.io CORS (third-party-advisory)
Frequently asked questions
- What is CVE-2026-85183?
- CVE-2026-85183 is a critical-severity vulnerability in Avaiga Taipy, classified under CWE-1385. CVSS score: 9.3/10. Published 2026-09-03.
- How severe is CVE-2026-85183?
- Critical severity. CVSS v3 base score is 9.3 out of 10.