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chore(deps): bump ws from 8.18.0 to 8.20.1#4740

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chore(deps): bump ws from 8.18.0 to 8.20.1#4740
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@dependabot dependabot Bot commented on behalf of github May 19, 2026 •
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Bumps ws from 8.18.0 to 8.20.1.

Release notes

Sourced from ws's releases.

8.20.1

Bug fixes

  • Fixed an uninitialized memory disclosure issue in websocket.close() (c0327ec1).

Providing a TypedArray (e.g. Float32Array) as the reason argument for websocket.close(), rather than the supported string or Buffer types, caused uninitialized memory to be disclosed to the remote peer.

import { deepStrictEqual } from 'node:assert';
import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer(
{ port: 0, skipUTF8Validation: true },
function () {
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port}, {
skipUTF8Validation: true
});
ws.on('close', function (code, reason) {
  deepStrictEqual(reason, Buffer.alloc(80));
});

}
);
wss.on('connection', function (ws) {
ws.close(1000, new Float32Array(20));
});

The issue was privately reported by Nikita Skovoroda.

8.20.0

Features

  • Added exports for the PerMessageDeflate class and utilities for the Sec-WebSocket-Extensions and Sec-WebSocket-Protocol headers (d3503c1f).

8.19.0

Features

  • Added the closeTimeout option (#2308).

Bug fixes

  • Handled a forthcoming breaking change in Node.js core (19984854).

... (truncated)

Commits
  • 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
  • 3ee5349 [api] Convert the isServer and maxPayload parameters to options
  • 91707b4 [doc] Add missing space
  • 8b55319 [pkg] Update eslint to version 10.0.1
  • Additional commits viewable in compare view

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 19, 2026
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⚠️ No Changeset found

Latest commit: 13c96ea

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.

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commit: 13c96ea

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Bundle Size Report

12 package(s) changed, 29 unchanged.

Package dist + ESM entry

Package Total dist (raw) Delta ESM gzip Delta
@module-federation/cli 26.3 kB no change 786 B no change
@module-federation/core 39.1 kB no change 173 B no change
@module-federation/devtools 664.0 kB no change 4.0 kB no change
@module-federation/enhanced 807.9 kB no change 672 B no change
@module-federation/managers 69.8 kB no change 334 B no change
@module-federation/manifest 136.1 kB no change 182 B no change
@module-federation/metro-plugin-rnc-cli 0 B no change 314 B no change
@module-federation/node 193.4 kB no change 217 B no change
@module-federation/runtime-core 287.4 kB +8 B (+0.0%) 477 B no change
@module-federation/runtime-tools 7.7 kB -65 B (-0.8%) 142 B no change
@module-federation/storybook-addon 77.9 kB no change 100 B no change
@module-federation/utilities 110.6 kB no change 328 B no change

Bundle targets

Package Web bundle (gzip) Delta Node bundle (gzip) Delta
@module-federation/cli 2.3 kB -31 B (-1.3%) 2.3 kB -31 B (-1.3%)
@module-federation/core 1.1 kB -32 B (-2.9%) 1.0 kB -31 B (-2.9%)
@module-federation/devtools 30.2 kB -33 B (-0.1%) 30.2 kB -33 B (-0.1%)
@module-federation/enhanced 2.6 kB -44 B (-1.6%) 2.6 kB -44 B (-1.6%)
@module-federation/managers 2.4 kB -27 B (-1.1%) 2.4 kB -27 B (-1.1%)
@module-federation/manifest 6.1 kB -41 B (-0.7%) 6.1 kB -41 B (-0.7%)
@module-federation/metro-plugin-rnc-cli 411 B -26 B (-5.9%) 411 B -26 B (-5.9%)
@module-federation/node 9.2 kB -28 B (-0.3%) 9.2 kB -28 B (-0.3%)
@module-federation/runtime-core 15.2 kB no change 15.0 kB no change
@module-federation/runtime-tools 89 B no change 89 B no change
@module-federation/storybook-addon 1.9 kB -25 B (-1.3%) 1.7 kB -24 B (-1.3%)
@module-federation/utilities 2.6 kB -32 B (-1.2%) 2.6 kB -32 B (-1.2%)

Consumer scenarios

Scenario Web output (gzip) Delta Node output (gzip) Delta Gap (node-web) Delta
Enhanced remoteEntry 21.4 kB -17 B (-0.1%) 22.5 kB -12 B (-0.1%) +1.1 kB +5 B

Total dist (raw): 6.78 MB (-57 B (-0.0%))
Total ESM gzip: 76.6 kB (no change)
Total web bundle (gzip): 205.4 kB (-319 B (-0.2%))
Total node bundle (gzip): 205.9 kB (-317 B (-0.2%))
Tracked ./bundler entry gzip: 556 B (no change)
Tracked ./bundler web bundle (gzip): 4.8 kB (no change)
Tracked ./bundler node bundle (gzip): 4.8 kB (no change)

Bundle sizes are generated with rslib (Rspack). Package-root metrics preserve the historical report. Tracked subpath exports such as ./bundler are measured separately so ENV_TARGET-driven tree-shaking is visible. Bare imports are externalized to keep package-level sizes consistent, and assets are emitted as resources.

@dependabot
chore(deps): bump ws from 8.18.0 to 8.20.1
13c96ea 
Bumps [ws](https://github.com/websockets/ws) from 8.18.0 to 8.20.1.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.18.0...8.20.1)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.20.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/ws-8.20.1 branch from 681db88 to 13c96ea Compare May 21, 2026 11:54
gioboa
gioboa approved these changes May 21, 2026
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This is solving this vulnerability issue.

c0327ec [security] Fix uninitialized memory disclosure in websocket.close()

Image

cc @2heal1

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