Node.js Networking MIT Latest: engine.io@6.6.7

Socket.IO

Bidirectional event-based communication library for real-time web applications

npm GitHub

Health Metrics

Project Health at a Glance

Live data from GitHub and npm, updated daily.

⭐

63.1K

GitHub Stars

📦

engine.io@6.6.7

Latest Release · 18 days ago

🔄

14d

Avg. Release Cadence

🐛

209

Open Issues

📅

18 days ago

Last Commit

⬇️

14.1M

Weekly Downloads

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Active CVEs

Data last fetched: 2026-05-15

Security

Known Vulnerabilities

3 active CVEs reported via OSV.dev

GHSA-25hc-qcg6-38wj CVSS_V3

socket.io has an unhandled 'error' event

Published: 2024-06-19 Fixed in: 2.5.1

GHSA-fxwf-4rqh-v8g3 CVSS_V3

CORS misconfiguration in socket.io

Published: 2021-01-20 Fixed in: 2.4.0

GHSA-qv2v-m59f-v5fw CVSS_V3

Insecure randomness in socket.io

Published: 2018-11-07 Fixed in: 0.9.7

Ecosystem

Alternatives to Socket.IO

Other Networking projects in the Node.js ecosystem worth evaluating.

ws → ably → signalr →

Get Help

Support Options for Socket.IO

Enterprise Support via DepKeep

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Community Channels

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