CVE-2026-85183 Details
Description
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.
A vulnerability exists in Taipy applications through version 4.1.1, where the socket.io server is configured with a wildcard CORS origin and the credential flag enabled. This setup allows any web page to establish credentialed WebSocket connections to the Taipy application, exploiting the victim's session. Attackers can manipulate state variables, invoke action callbacks, and exfiltrate data without the user's knowledge, all from an arbitrary domain.
Users can update to Taipy version 4.1.2, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 3, 2026CISA-ADP
Assessed Sep 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Avaiga/taipy/issues/2890 | CISA-ADP | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/Avaiga/taipy | [email protected] | Vendor |
| https://github.com/Avaiga/taipy/blob/4.1.1/taipy/gui/server.py | [email protected] | Source CodeVendor |
| https://github.com/Avaiga/taipy/issues/2890 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/taipy-through-4.1.1-cross-site-websocket-hijacking-via-wildcard-socket-io-cors | [email protected] | AdvisoryBundleVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1385 | Missing Origin Validation in WebSockets | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Avaiga Taipy | <= 4.1.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 3, 2026 | New CVE Received | [email protected] |
| Sep 3, 2026 | CVE Modified | CISA-ADP |