ws: Uninitialized memory disclosure_CVE-2026-45736

4.4 / 10

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

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.

Basic Information

ID CVE-2026-45736

Source GitHub_M

Published May 15, 2026 at 14:53

Affected Product

Vendor websockets

Product ws

Version >= 8.0.0, < 8.20.1

Affected Versions websockets ws >= 8.0.0, < 8.20.1

CWE Classification

CWE-908

References

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    "published": "2026-05-15T14:53:57.263Z",
    "modified": "2026-05-15T14:53:57.263Z",
    "type": "cve",
    "title": "ws: Uninitialized memory disclosure",
    "source": "GitHub_M",
    "references": "https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpx\nhttps://github.com/websockets/ws/commit/c0327ec15a54d701eb6ccefaa8bef328cfc03086",
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