THREAT OPS › Threat News › [NVD] CVE-2026-45736 (MEDIUM 4.4) — 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.
[NVD] CVE-2026-45736 (MEDIUM 4.4) — 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.
CVE-2026-45736 CVSS: 4.4 MEDIUM Published: 2026-05-15T15:16:54.103
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.
Indicators of compromise
- CVE-2026-45736cve
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-45736