Is ws healthy, maintained, and safe?
Maintained, but watch it — ws has real signals (drift, thin maintenance, or advisories) worth tracking.
The verdict
OSPulse scores ws at 55/100 (medium risk), computed deterministically from live npm release history, maintainer data, and the OSV vulnerability database. Maintained, but watch it — ws has real signals (drift, thin maintenance, or advisories) worth tracking.
Its most recent release shipped on 17 July 2026 — 10 days ago — so development is clearly active. Across 188 releases the cadence has been steady, which is a good sign of an ongoing maintenance rhythm. 4 maintainers are listed on npm, so the project isn't hostage to any single contributor.
OSV lists 7 known advisories for ws, including 4 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.
ws is usable but carries real signals — pin versions, watch for new advisories, and keep a fallback in mind. 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.
Evidence trail — deterministic, auditable
Known vulnerabilities (7)
Remote Memory Disclosure in ws
ws affected by a DoS when handling a request with many HTTP headers
ws: Uninitialized memory disclosure
Denial of Service in ws
DoS due to excessively large websocket message in ws
ReDoS in Sec-Websocket-Protocol header
ws: Memory exhaustion DoS from tiny fragments and data chunks
Key facts
- Latest version
- v8.21.1
- Last release
- 17 July 2026 (10 days ago)
- Total releases
- 188
- First release
- 4 December 2011
- Package age
- 14.7 years
- Maintainers
- 4
- Known advisories
- 7
- Confidence
- High
Frequently asked
Is ws still maintained?
Yes — ws released as recently as 17 July 2026 (10 days ago), so it is actively maintained.
Does ws have known security vulnerabilities?
Yes — OSV lists 7 advisories for ws. See the advisory list on this page for the OSV/GHSA identifiers.
Is ws safe to use?
Maintained, but watch it — ws has real signals (drift, thin maintenance, or advisories) worth tracking. OSPulse rates it 55/100 (medium risk) based on release recency, cadence, maintainer bus factor and known vulnerabilities.
Other npm packages we've checked
ws is one package. What about the other hundreds in your tree?
Paste your own package.json into the free health check for an instant snapshot — or let OSPulse monitor your whole dependency tree continuously, before your CVE scanner wakes up.
Data from the npm registry & OSV.dev · snapshot generated 2026-07-27 · scores are deterministic and recomputed on each refresh.