Is socket.io healthy, maintained, and safe?

The verdict

socket.io earns a health score of 34/100, a high risk rating, computed deterministically from live npm release history, maintainer data, and the OSV vulnerability database. Use with caution — socket.io shows serious drift or security signals you should review before relying on it.

The newest release dates to 23 December 2025, 216 days back — a gap long enough to suggest the pace is slowing. Historically it released far more frequently, so the current silence reads as a genuine collapse in velocity rather than a natural gap. Two maintainers are listed; better than a lone author, but still a thin bench if one steps away.

OSV lists 3 known advisories for socket.io, including 1 high. Review whether your version is in the affected range and whether a fixed release is available before depending on it. Each advisory is listed with its OSV/GHSA identifier below.

Treat socket.io as a liability to manage: review the evidence above, pin or patch, and evaluate alternatives. This is a one-time snapshot of a single package — real projects depend on dozens or hundreds of packages, and any one of them can drift or be compromised between releases. Run your own package.json through the free health check, or have OSPulse monitor your whole dependency tree continuously.