CVE-2026-85183 Taipy through 4.1.1 Cross-Site WebSocket Hijacking via Wildcard socket.io CORS
Attackers can hijack WebSocket sessions to modify application state and trigger actions due to insecure CORS configuration in Taipy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-85183?
CVE-2026-85183 is a critical vulnerability in Avaiga taipy, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-1385
Which versions are affected by CVE-2026-85183?
How do I fix CVE-2026-85183?
No fix has been published for CVE-2026-85183 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-85183 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85183 exists.
Sources
Also known as GHSA-jcr8-jmf2-43vw.