CVE-2026-45736
ws: Uninitialized memory disclosure
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.4EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
15 May 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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 · wsWant to know if your infrastructure is exposed to this?
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