CVE-2026-45736mediumCWE-824CWE-908

CVE-2026-45736: medium-severity vulnerability in websockets ws

ws: Uninitialized memory disclosure

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.4epss 0.7%
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:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Affected products
websockets · ws
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