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@renovate renovate bot commented Dec 8, 2025

This PR contains the following updates:

Package Type Update Change Age Confidence
actions/checkout action major v5 -> v6 age confidence
actions/setup-node action major v5 -> v6 age confidence
mocha (source) devDependencies major ^10.2.0 -> ^11.0.0 age confidence
ws dependencies major 6.2.3 -> 8.18.3 age confidence

Release Notes

actions/checkout (actions/checkout)

v6

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actions/setup-node (actions/setup-node)

v6

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mochajs/mocha (mocha)

v11.7.5

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🩹 Fixes
🧹 Chores

v11.7.4

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🩹 Fixes
📚 Documentation
  • migrate remaining legacy wiki pages to main documentation (#​5465) (bff9166)
🧹 Chores

v11.7.3

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🩹 Fixes
  • use original require() error for TS files if ERR_UNKNOWN_FILE_EXTENSION (#​5408) (ebdbc48)
📚 Documentation
🤖 Automation
  • deps: bump actions/setup-node in the github-actions group (#​5459) (48c6f40)

v11.7.2

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🩹 Fixes
📚 Documentation
🧹 Chores
🤖 Automation
  • deps: bump actions/checkout in the github-actions group (#​5419) (03ac2d0)

v11.7.1

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🩹 Fixes
🧹 Chores

v11.7.0

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🌟 Features

v11.6.0

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🌟 Features

v11.5.0

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🌟 Features

v11.4.0

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🌟 Features
📚 Documentation
  • added CHANGELOG.md note around 11.1 yargs-parser update (#​5362) (618415d)

v11.3.0

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🌟 Features
📚 Documentation
🧹 Chores

v11.2.2

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🩹 Fixes
📚 Documentation

v11.2.1

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🩹 Fixes
📚 Documentation
🧹 Chores

v11.2.0

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🌟 Features
📚 Documentation
🧹 Chores

v11.1.0

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🌟 Features
  • bump yargs to 17 (#​5165) (8f1c8d8)
    • Note that this also included a version bump of yargs-parser from ^20.2.9 to ^21.1., which fixed a bug that caused extra quotes in file paths to be removed.
      See #​5341 for more information.
  • replace strip-ansi with util.stripVTControlCharacters (#​5267) (3c191c0), closes #​5265

v11.0.2

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🩹 Fixes
  • catch exceptions setting Error.stackTraceLimit (#​5254) (259f8f8)
  • error handling for unexpected numeric arguments passed to cli (#​5263) (210d658)
📚 Documentation

v11.0.1

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🌟 Features
📚 Documentation

v11.0.0

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⚠ BREAKING CHANGES
  • adapt new engine range for Mocha 11 (#​5216)
🌟 Features
🩹 Fixes
📚 Documentation
websockets/ws (ws)

v8.18.3

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Bug fixes

  • Fixed a spec violation where the Sec-WebSocket-Version header was not added
    to the HTTP response if the client requested version was either invalid or
    unacceptable (#​2291).

v8.18.2

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Bug fixes

  • Fixed an issue that, during message decompression when the maximum size was
    exceeded, led to the emission of an inaccurate error and closure of the
    connection with an improper close code (#​2285).

v8.18.1

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Bug fixes

  • The length of the UNIX domain socket paths in the tests has been shortened to
    make them work when run via CITGM (021f7b8).

v8.18.0

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Features

v8.17.1

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Bug fixes

A request with a number of headers exceeding theserver.maxHeadersCount
threshold could be used to crash a ws server.

const http = require('http');
const WebSocket = require('ws');

const wss = new WebSocket.Server({ port: 0 }, function () {
  const chars = "!#$%&'*+-.0123456789abcdefghijklmnopqrstuvwxyz^_`|~".split('');
  const headers = {};
  let count = 0;

  for (let i = 0; i < chars.length; i++) {
    if (count === 2000) break;

    for (let j = 0; j < chars.length; j++) {
      const key = chars[i] + chars[j];
      headers[key] = 'x';

      if (++count === 2000) break;
    }
  }

  headers.Connection = 'Upgrade';
  headers.Upgrade = 'websocket';
  headers['Sec-WebSocket-Key'] = 'dGhlIHNhbXBsZSBub25jZQ==';
  headers['Sec-WebSocket-Version'] = '13';

  const request = http.request({
    headers: headers,
    host: '127.0.0.1',
    port: wss.address().port
  });

  request.end();
});

The vulnerability was reported by Ryan LaPointe in #​2230.

In vulnerable versions of ws, the issue can be mitigated in the following ways:

  1. Reduce the maximum allowed length of the request headers using the
    --max-http-header-size=size and/or the maxHeaderSize options so
    that no more headers than the server.maxHeadersCount limit can be sent.
  2. Set server.maxHeadersCount to 0 so that no limit is applied.

v8.17.0

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Features

  • The WebSocket constructor now accepts the createConnection option (#​2219).

Other notable changes

  • The default value of the allowSynchronousEvents option has been changed to
    true (#​2221).

This is a breaking change in a patch release. The assumption is that the option
is not widely used.

v8.16.0

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Features

  • Added the autoPong option (01ba54e).

v8.15.1

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Notable changes

  • The allowMultipleEventsPerMicrotask option has been renamed to
    allowSynchronousEvents (4ed7fe5).

This is a breaking change in a patch release that could have been avoided with
an alias, but the renamed option was added only 3 days ago, so hopefully it
hasn't already been widely used.

v8.15.0

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Features

  • Added the allowMultipleEventsPerMicrotask option (93e3552).

v8.14.2

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Bug fixes

  • Fixed an issue that allowed errors thrown by failed assertions to be
    swallowed when running tests (7f4e1a7).

v8.14.1

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Bug fixes

  • Improved the reliability of two tests for CITGM (fd3c64c).

v8.14.0

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Features

  • The WebSocket constructor now accepts HTTP(S) URLs (#​2162).
  • The socket argument of server.handleUpgrade() can now be a generic
    Duplex stream (#​2165).

Other notable changes

  • At most one event per microtask is now emitted (#​2160).

v8.13.0

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Features

  • Added the finishRequest option to support late addition of headers (#​2123).

v8.12.1

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Bug fixes

  • Added browser condition to package.json (#​2118).

v8.12.0

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Features

  • Added support for utf-8-validate@6 (ff63bba).

Other notable changes

v8.11.0

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Features

  • WebSocket.prototype.addEventListener() now supports an event listener
    specified as an object with a handleEvent() method. (9ab743a).

Bug fixes

  • WebSocket.prototype.addEventListener() now adds an event listener only if it
    is not already in the list of the event listeners for the specified event type
    (1cec17d).

v8.10.0

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Features

  • Added an export for package.json (211d5d3).

v8.9.0

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Features

  • Added the ability to connect to Windows named pipes (#​2079).

v8.8.1

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Bug fixes

  • The Authorization and Cookie headers are no longer sent if the original
    request for the opening handshake is sent to an IPC server and the client is
    redirected to another IPC server (bc8bd34).

v8.8.0

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Features
  • Added the WS_NO_BUFFER_UTIL and WS_NO_UTF_8_VALIDATE environment
    variables (becf237).

v8.7.0

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Features
  • Added the ability to inspect the invalid handshake requests and respond to
    them with a custom HTTP response. (6e5a5ce).
Bug fixes
  • The handshake is now aborted if the Upgrade header field value in the HTTP
    response is not a case-insensitive match for the value "websocket" (0fdcc0a).
  • The Authorization and Cookie headers are no longer sent when following an
    insecure redirect (wss: to ws:) to the same host (d68ba9e).

v8.6.0

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Features

  • Added the ability to remove confidential headers on a per-redirect basis (#​2030).

v8.5.0

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Features
  • Added the ability to use a custom WebSocket class on the server (#​2007).
Bug fixes
  • When following redirects, the Authorization and Cookie headers are no
    longer sent if the redirect host is different from the original host (#​2013).

v8.4.2

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Bug fixes

  • Fixed a data framing issue introduced in version 8.4.1 (#​2004).

v8.4.1

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Notable changes

  • To improve performance, strings sent via websocket.ping(),
    websocket.pong(), and websocket.send() are no longer converted to
    Buffers if the data does not need to be masked (#​2000).

v8.4.0

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Features

  • Added ability to generate custom masking keys (#​1990).

v8.3.0

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Features

  • Added ability to pause and resume a WebSocket (0a8c7a9).

Bug fixes

  • Fixed a bug that could prevent the connection from being closed cleanly when
    using the stream API (ed2b803).
  • When following redirects, an error is now emitted and not thrown if the
    redirect URL is invalid (#​1980).

v8.2.3

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Bug fixes

  • When context takeover is enabled, messages are now compressed even if their size
    is below the value of the perMessageDeflate.threshold option (41ae563).

v8.2.2

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Bug fixes
  • Some closing operations are now run only if needed (ec9377c).

v8.2.1

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Bug fixes

  • Fixed an issue where the socket was not resumed, preventing the connection
    from being closed cleanly (869c989).

v8.2.0

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Features
  • Added WebSocket.WebSocket as an alias for WebSocket and
    WebSocket.WebSocketServer as an alias for WebSocket.Server to fix name
    consistency and improve interoperability with the ES module wrapper (#​1935).

v8.1.0

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Features
  • Added ability to skip UTF-8 validation (#​1928).
Bug fixes
  • Fixed an issue with a breaking change in Node.js master (6a72da3).
  • Fixed a misleading error message (c95e695).

v8.0.0

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Breaking changes

  • The WebSocket constructor now throws a SyntaxError if any of the
    subprotocol names are invalid or duplicated (0aecf0c).

  • The server now aborts the opening handshake if an invalid
    Sec-WebSocket-Protocol header field value is received (1877dde).

  • The protocols argument of handleProtocols hook is no longer an Array but
    a Set (1877dde).

  • The opening handshake is now aborted if the Sec-WebSocket-Extensions header
    field value is empty or it begins or ends with a white space (e814110).

  • Dropped support for Node.js < 10.0.0 (552b506).

  • The WebSocket constructor now throws a SyntaxError if the connection URL
    contains a fragment identifier or if the URL's protocol is not one of 'ws:',
    'wss:', or 'ws+unix:' (ebea038).

  • Text messages and close reasons are no longer decoded to strings. They are
    passed as Buffers to the listeners of their respective events. The listeners
    of the 'message' event now take a boolean argument specifying whether or not
    the message is binary (e173423).

    Existing code can be migrated by decoding the buffer explicitly.

    websocket.on('message', function message(data, isBinary) {
      const message = isBinary ? data : data.toString();
      // Continue as before.
    });
    
    websocket.on('close', function close(code, data) {
      const reason = data.toString();
      // Continue as before.
    });
  • The package now uses an ES module wrapper (78adf5f).

  • WebSocketServer.prototype.close() no longer closes existing connections
    (df7de57).

    Existing code can be migrated by closing the connections manually.

    websocketServer.close();
    for (const ws of websocketServer.clients) {
      ws.terminate();
    }
  • The callback of WebSocketServer.prototype.close() is now called with an
    error if the server is already closed (abde9cf).

  • WebSocket.prototype.addEventListener() is now a noop if the type argument
    is not one of 'close', 'error', 'message', or 'open' (9558ed1).

  • WebSocket.prototype.removeEventListener() now only removes listeners added
    with WebSocket.prototype.addEventListener() and only one at time (ea95d9c).

  • The value of the onclose, onerror, onmessage, and onopen properties is
    now null if the respective event handler is not set (6756cf5).

  • The OpenEvent class has been removed (21e6500).

Bug fixes

  • The event listeners added via handler properties are now independent from the
    event listeners added with WebSocket.prototype.addEventListener()
    (0b21c03).

v7.5.10

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Bug fixes

v7.5.9

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Bug fixes

v7.5.8

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Bug fixes

v7.5.7

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Bug fixes

v7.5.6

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Bug fixes

v7.5.5

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Bug fixes

v7.5.4

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Bug fixes

v7.5.3

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Bug fixes

  • The WebSocketServer constructor now throws an error if more than one of the
    noServer, server, and port options are specefied (66e58d2).
  • Fixed a bug where a 'close' event was emitted by a WebSocketServer before
    the internal HTTP/S server was actually closed (5a58730).
  • Fixed a bug that allowed WebSocket connections to be established after
    WebSocketServer.prototype.close() was called (772236a).

v7.5.2

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Bug fixes
  • The opening handshake is now aborted if the client receives a
    Sec-WebSocket-Extensions header but no extension was requested or if the
    server indicates an extension not requested by the client (aca94c8).

v7.5.1

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Bug fixes
  • Fixed an issue that prevented the connection from being closed properly if an
    error occurred simultaneously on both peers (b434b9f).

v7.5.0

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Features
  • Some errors now have a code property describing the specific type of error
    that has occurred (#​1901).
Bug fixes
  • A close frame is now sent to the remote peer if an error (such as a data
    framing error) occurs (8806aa9).
  • The close code is now always 1006 if no close frame is received, even if the
    connection is closed due to an error (8806aa9).

v7.4.6

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Bug fixes

  • Fixed a ReDoS vulnerability (00c425e).

A specially crafted value of the Sec-Websocket-Protocol header could be used
to significantly slow down a ws server.

for (const length of [1000, 2000, 4000, 8000, 16000, 32000]) {
  const value = 'b' + ' '.repeat(length) + 'x';
  const start = process.hrtime.bigint();

  value.trim().split(/ *, */);

  const end = process.hrtime.bigint();

  console.log('length = %d, time = %f ns', length, end - start);
}

The vulnerability was responsibly disclosed along with a fix in private by
Robert McLaughlin from University of California, Santa Barbara.

In vulnerable versions of ws, the issue can be mitigated by reducing the maximum
allowed length of the request headers using the --max-http-header-size=size
and/or the maxHeaderSize options.

v7.4.5

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Bug fixes

  • UTF-8 validation is now done even if utf-8-validate is not installed
    (23ba6b2).
  • Fixed an edge case where websocket.close() and websocket.terminate() did
    not close the connection (67e25ff).

v7.4.4

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Bug fixes

  • Fixed a bug that could cause the process to crash when using the
    permessage-deflate extension (9277437).

v7.4.3

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Bug fixes
  • The deflate/inflate stream is now reset instead of reinitialized when context
    takeover is disabled (#​1840).

v7.4.2

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Bug fixes
  • Silenced a deprecation warning (a2c0d44).

v7.4.1

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Bug fixes
  • Added a workaround for a double 'error' event bug in Node.js < 13 which
    caused an uncaught error during the WebSocket handshake (38d6ab3).

v7.4.0

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Features
  • The callback of WebSocketServer.prototype.handleUpgrade() now takes the
    client HTTP GET request as second argument (7d39f19).
Bug fixes
  • Read-only properties are now read-only (eabed8f).
  • The CONNECTING, OPEN, CLOSING, CLOSED, binaryType, bufferedAmount,
    extensions, onclose, onerror, onmessage, onopen, protocol,
    readyState, and url properties are now enumerable (2069e68).

v7.3.1

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Bug fixes

v7.3.0

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Features

  • WebSocket.prototype.addEventListener() now supports the once option (#​1754).

v7.2.5

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Bug fixes

  • Fixed compatibility with Node.js master (651d662).

v7.2.3

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Bug fixes

  • WebSocket#{p{i,o}ng,close}() now thow an error if the data to send is too
    large to fit in a control frame (e54f08d).

v7.2.2

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Bug fixes

  • Fixed an issue where calling webSocketStream.end() could cause the process
    to crash (9535702).
  • The connection is now closed if a non-masked frame is received on the server
    or a masked frame is received on the client (#​1681).
  • The status code 1014 is now allowed to be used (#​1682).

v7.2.1

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Bug fixes

  • Added bufferutil and utf-8-validate as peer dependencies (#​1626).

v7.2.0

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Features

  • Added ability to specify the readableObjectMode option when using
    WebSocket.createWebSocketStream() (#​1647).

v7.1.2

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Bug fixes

  • Fixed a bug that caused compress jobs to never be marked as complete
    (#​1618).

v7.1.1

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Bug fixes

  • An error is now thrown if the WebSocket server constructor is used
    incorrectly (3641266).

v7.1.0

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Features

  • Added utility to wrap a WebSocket in a Duplex stream (#​1589).

Bug fixes

v7.0.1

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Bug fixes

  • Added ability to disable sending the SNI extension (#​1587).

v7.0.0

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Breaking changes

  • Dropped support for Node.js 6 (1e6999b).
  • Dropped support for url.Url instances in the WebSocket constructor
    (692d7b4).
  • The behavior of WebSocket#{p{i,o}ng,send}() has changed when the
    readyState attribute is not OPEN (#​1532)
    • If the readyState attribute is CONNECTING, an exception is thrown.
    • If the readyState attribute is CLOSING or CLOSED
      • The bufferedAmount attribute is increased by the length of the data
        argument in bytes.
      • If provided, the callback function is called with an error.
      • No exception is thrown even if the callback function is not provided.

Configuration

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🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

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  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot force-pushed the renovate-major-external-major branch 4 times, most recently from 0d5bdba to b87c4b6 Compare December 9, 2025 15:51
@renovate renovate bot force-pushed the renovate-major-external-major branch from b87c4b6 to 40c6a36 Compare December 16, 2025 04:33
@renovate renovate bot force-pushed the renovate-major-external-major branch from 40c6a36 to 2498f33 Compare December 17, 2025 07:02
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