CVE-2023-31125 Information

Description

Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. An uncaught exception vulnerability was introduced in version 5.1.0 and included in version 4.1.0 of the socket.io parent package. Older versions are not impacted. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server thus killing the Node.js process. This impacts all the users of the engine.io package including those who use depending packages like socket.io. This issue was fixed in version 6.4.2 of Engine.IO. There is no known workaround except upgrading to a safe version.

Reference

https://github.com/socketio/engine.io/releases/tag/6.4.2 https://github.com/socketio/engine.io/commit/fc480b4f305e16fe5972cf337d055e598372dc44 https://github.com/socketio/engine.io/security/advisories/GHSA-q9mw-68c2-j6m5