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chore(deps): bump ws from 8.20.0 to 8.21.0 - #86

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chore(deps): bump ws from 8.20.0 to 8.21.0#86
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@dependabotdependabotBot commented on behalf of githubMay 18, 2026

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Bumps ws from 8.20.0 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';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();});})();});ws.on('error',console.error);ws.on('close',function(code,reason){console.log(clientclose-code: ${code}reason: ${reason.toString()});});});wss.on('connection',function(ws){ws.on('error',console.error);ws.on('close',function(code,reason){console.log(serverclose-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
  • See full diff in compare view

@dependabotdependabotBot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 18, 2026
@dependabot
dependabotBotforce-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch from 3f198c7 to 0727bd5CompareMay 20, 2026 14:16
@dependabotdependabotBot changed the title chore(deps): bump ws from 8.20.0 to 8.20.1chore(deps): bump ws from 8.20.0 to 8.21.0May 26, 2026
@dependabot
dependabotBotforce-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch from 0727bd5 to 9ad26a4CompareMay 26, 2026 16:51
Bumps [ws](https://github.com/websockets/ws) from 8.20.0 to 8.21.0.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.20.0...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
dependabotBotforce-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch from 9ad26a4 to d59fabdCompareMay 27, 2026 15:48
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