CVE-2026-45736 | THREATINT

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.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-15 | Updated 2026-05-16 | Assigner GitHub_M

MEDIUM: 4.4CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-908: Use of Uninitialized Resource

Product status

>= 8.0.0, < 8.20.1

affected

References

github.com/...ets/ws/security/advisories/GHSA-58qx-3vcg-4xpx exploit

github.com/...ets/ws/security/advisories/GHSA-58qx-3vcg-4xpx

github.com/...ommit/c0327ec15a54d701eb6ccefaa8bef328cfc03086

cve.org (CVE-2026-45736)

nvd.nist.gov (CVE-2026-45736)

Download JSON