CVE-2026-45736
ws is an open source WebSocket client and server for Node.js. Prior to 8.20.1, the websocket.close() implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This vulnerability is fixed in 8.20.1.
- Published May 15, 2026
- CVSS 7.5 high
- 0.7% chance of exploitation in the next 30 days (EPSS)
- Public exploit code is available
- A fix is available