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Bump ws from 8.20.0 to 8.20.1#5092

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Simek merged 1 commit into
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dependabot/npm_and_yarn/ws-8.20.1
May 20, 2026
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Bump ws from 8.20.0 to 8.20.1#5092
Simek merged 1 commit into
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dependabot/npm_and_yarn/ws-8.20.1

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Bumps ws from 8.20.0 to 8.20.1.

Release notes

Sourced from ws's releases.

8.20.1

Bug fixes

  • Fixed an uninitialized memory disclosure issue in websocket.close() (c0327ec1).

Providing a TypedArray (e.g. Float32Array) as the reason argument for websocket.close(), rather than the supported string or Buffer types, caused uninitialized memory to be disclosed to the remote peer.

import { deepStrictEqual } from 'node:assert';
import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer(
{ port: 0, skipUTF8Validation: true },
function () {
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port}, {
skipUTF8Validation: true
});
ws.on('close', function (code, reason) {
  deepStrictEqual(reason, Buffer.alloc(80));
});

}
);
wss.on('connection', function (ws) {
ws.close(1000, new Float32Array(20));
});

The issue was privately reported by Nikita Skovoroda.

Commits
  • 5d9b316 [dist] 8.20.1
  • c0327ec [security] Fix uninitialized memory disclosure in websocket.close()
  • ce2a3d6 [ci] Test on node 26
  • 58e45b8 [ci] Do not test on node 25
  • 5f26c24 [ci] Run the lint step on node 24
  • See full diff in compare view

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Bumps [ws](https://github.com/websockets/ws) from 8.20.0 to 8.20.1.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.20.0...8.20.1)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.20.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added Dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 20, 2026
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@Simek Simek merged commit 0892fa6 into main May 20, 2026
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@dependabot dependabot Bot deleted the dependabot/npm_and_yarn/ws-8.20.1 branch May 20, 2026 12:32
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