ws is an open source WebSocket client and server library for Node.js. A specially crafted value of the `Sec-Websocket-Protocol` header can be used to significantly slow down a ws server. The vulnerability has been fixed in ws@7.4.6 (github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff). In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the [`--max-http-header-size=size`](nodejs.org/api/cli.html#cli_max_http_header_size_size) and/or the [`maxHeaderSize`](nodejs.org/api/http.html#http_http_createserver_options_requestlistener) options.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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ws project ws |
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netapp e-series performance analyzer - |
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