CVE-2026-85183

CRITICAL 9.3

Taipy through 4.1.1 Cross-Site WebSocket Hijacking via Wildcard socket.io CORS

CVSS Score

9.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1385
Vendor	avaiga
Product	taipy
Published	Sep 3, 2026
Last Updated	Sep 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

Avaiga / taipy

0 ≤ 4.1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Avaiga/taipy/issues/2890 github.com: https://github.com/Avaiga/taipy github.com: https://github.com/Avaiga/taipy/blob/4.1.1/taipy/gui/server.py vulncheck.com: https://www.vulncheck.com/advisories/taipy-through-4.1.1-cross-site-websocket-hijacking-via-wildcard-socket-io-cors

Credits

🔍 George Chen