CVE-2026-45736

Description

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.

CVSS Vector

References

• https://github.com/websockets/ws/commit/c0327ec15a54d701eb6ccefaa8bef328cfc03086
• https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpx
• https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpx