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Product · socketio

engine.io

4 known vulnerabilities.

engine.io at a glance

Last 12 months
1
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 1 1 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 1 vulnerability August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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All Critical High Medium Low Exploited only Public exploit

4 results · Feed

  • High 7.5
    CVE-2026-59725

    Socket.IO: Engine.IO Polling Transport Connection Exhaustion

    Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP response for invalid binary POST requests with Content-Type: application/octet-…

    socketio engine.io engine.io npm
  • Medium 6.5
    CVE-2023-31125

    Uncaught exception in engine.io

    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…

    socketio engine.io engine.io npm
  • High 7.1
    CVE-2022-41940

    Uncaught exception in engine.io

    Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This …

    socketio engine.io engine.io npm
  • High 7.5
    CVE-2022-21676

    Uncaught Exception in engine.io

    Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This …

    socketio engine.io engine.io npm