Technology · npm
ws (npm) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 8 vulnerabilities in ws (npm): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-62389, was published on 15 July 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About ws (npm)
WebSocket implementation for Node.js with support for the WebSocket protocol.
Latest ws (npm) vulnerabilities
- CVE-2026-62389: websockets ws memory exhaustion in lib/receiver.jshighCVSS 7.5
- CVE-2026-48779: websockets ws memory exhaustion DoS via small fragmentshighCVSS 7.5EPSS 0.9%
- CVE-2026-45736: websockets ws uninitialized memory disclosure in websocket.closemediumCVSS 4.4EPSS 0.7%
- CVE-2024-37890: websockets ws denial of service via excessive HTTP headershighCVSS 7.5
- CVE-2021-32640: ws ReDoS vulnerability in Sec-Websocket-Protocol header parsinglowCVSS 3.1EPSS 2.8%
- ws WebSocket denial of service in Sec-WebSocket-Extensions parsinglowCVSS 3.1
- CVE-2016-10542: ws excessive websocket payload denial of serviceinfoCVSS 7.5EPSS 7.5%
- CVE-2016-10518: websockets ws remote memory disclosure via uninitialized buffersinfoCVSS 7.5
Most severe ws (npm) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-48779: websockets ws memory exhaustion DoS via small fragmentshighCVSS 7.5EPSS 0.9%
- CVE-2026-62389: websockets ws memory exhaustion in lib/receiver.jshighCVSS 7.5
- CVE-2024-37890: websockets ws denial of service via excessive HTTP headershighCVSS 7.5
- CVE-2026-45736: websockets ws uninitialized memory disclosure in websocket.closemediumCVSS 4.4EPSS 0.7%
- CVE-2021-32640: ws ReDoS vulnerability in Sec-Websocket-Protocol header parsinglowCVSS 3.1EPSS 2.8%
- ws WebSocket denial of service in Sec-WebSocket-Extensions parsinglowCVSS 3.1
- CVE-2016-10542: ws excessive websocket payload denial of serviceinfoCVSS 7.5EPSS 7.5%
- CVE-2016-10518: websockets ws remote memory disclosure via uninitialized buffersinfoCVSS 7.5
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many ws (npm) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/ws)<a href="https://junglewise.ai/threats/technologies/ws"><img src="https://junglewise.ai/threats/technologies/ws/badge.svg" alt="ws (npm) vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/ws.json, and this page as text at https://junglewise.ai/threats/technologies/ws.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "ws (npm) vulnerabilities", https://junglewise.ai/threats/technologies/ws, 13 November 2026.