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chore(deps-dev): bump ws from 8.18.3 to 8.21.3 - #5

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chore(deps-dev): bump ws from 8.18.3 to 8.21.3#5
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@dependabotdependabotBot commented on behalf of githubAug 12, 2026

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Bumps ws from 8.18.3 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';constwss=newWebSocketServer({port: 0},function(){constdata=Buffer.alloc(1);constoptions={fin: false};const{ port }=wss.address();constws=newWebSocket(ws://localhost:${port});ws.on('open',function(){(functionsend(){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

@dependabot@github

dependabotBot commented on behalf of githubAug 12, 2026

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The following labels could not be found: automated, dependencies. Please create them before Dependabot can add them to a pull request.

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

Bumps [ws](https://github.com/websockets/ws) from 8.18.3 to 8.21.3.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.18.3...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>
@dependabotdependabotBot changed the title chore(deps): bump ws from 8.18.3 to 8.21.3chore(deps-dev): bump ws from 8.18.3 to 8.21.3Aug 12, 2026
@dependabot
dependabotBotforce-pushed the dependabot/npm_and_yarn/ws-8.21.3 branch from 22f946f to 60f35b6CompareAugust 12, 2026 17:45
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