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chore(deps): bump ws from 8.19.0 to 8.21.3 - #2706

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Aug 20, 2026
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chore(deps): bump ws from 8.19.0 to 8.21.3#2706
github-actions[bot] merged 1 commit into
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dependabot/npm_and_yarn/ws-8.21.3

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@dependabot

@dependabot dependabot Bot commented on behalf of github Aug 20, 2026

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Bumps ws from 8.19.0 to 8.21.3.

Release notes

Sourced from ws's releases.

8.21.3

Bug fixes

  • The server now correctly rejects permessage-deflate offers if the incoming client_max_window_bits parameter value is smaller than its configured clientMaxWindowBits (e97a20ea).

8.21.2

Bug fixes

  • Fixed a test for CITGM (2eb3be0b).

8.21.1

Bug fixes

  • Empty fragments are now counted toward the limit (a2f4e7c0).
  • The default values of the maxBufferedChunks and maxFragments options have been reduced (f197ac65).

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();
});
})();
});
</tr></table>

... (truncated)

Commits
  • c791e70 [dist] 8.21.3
  • e97a20e [fix] Reject offers with client_max_window_bits below config
  • 787ebf2 [dist] 8.21.2
  • b4d62eb Revert "[ci] Trust Coveralls Homebrew tap"
  • e4bb883 [security] Use GitHub PVR as main reporting channel
  • 2eb3be0 [test] Skip test on Node.js versions where it does not apply
  • ae1de54 [dist] 8.21.1
  • 8e9511b [ci] Trust Coveralls Homebrew tap
  • f197ac6 [fix] Lower default values of maxBufferedChunks and maxFragments
  • 8df8265 [ci] Update actions/checkout action to v7
  • Additional commits viewable in compare view

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Bumps [ws](https://github.com/websockets/ws) from 8.19.0 to 8.21.3.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.19.0...8.21.3)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.21.3
  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 Aug 20, 2026
@dependabot
dependabot Bot requested a review from a team as a code owner August 20, 2026 19:34
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update Javascript code labels Aug 20, 2026
@changeset-bot

changeset-bot Bot commented Aug 20, 2026

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⚠️ No Changeset found

Latest commit: 11440e0

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

@github-actions
github-actions Bot enabled auto-merge (squash) August 20, 2026 19:35
@codecov

codecov Bot commented Aug 20, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.14%. Comparing base (3082633) to head (11440e0).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #2706   +/-   ##
=======================================
  Coverage   89.14%   89.14%           
=======================================
  Files          65       65           
  Lines       10361    10361           
  Branches      473      473           
=======================================
  Hits         9236     9236           
  Misses       1094     1094           
  Partials       31       31           
Flag Coverage Δ
cli-hooks 89.14% <ø> (ø)
cli-test 89.14% <ø> (ø)
logger 89.14% <ø> (ø)
oauth 89.14% <ø> (ø)
socket-mode 89.14% <ø> (ø)
web-api 89.14% <ø> (ø)
webhook 89.14% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

@github-actions
github-actions Bot merged commit 614ed94 into main Aug 20, 2026
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@github-actions
github-actions Bot deleted the dependabot/npm_and_yarn/ws-8.21.3 branch August 20, 2026 19:38
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