Skip to main content
← All vulnerabilities
CVE-2024-38355GHSA-25HC-QCG6-38WJ

Unhandled 'error' event in socket.io

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.5.1, 4.6.2
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. This issue is fixed by commit `15af22fc22` which has been included in `socket.io@4.6.2` (released in May 2023). The fix was backported in the 2.x branch as well with commit `d30630ba10`. Users are advised to upgrade. Users unable to upgrade may attach a listener for the "error" event to catch these errors.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • socketio socket.io

    fixed in 2.5.1; From 3.0.0 · fixed in 4.6.2

  • socket.ionpm

    fixed in 2.5.1

  • socket.ionpm

    From 3.0.0 · fixed in 4.6.2

References 4

GitHub · socketio/socket.io

GitHub · PawelMurdzek/CVE-2024-38355-PoC