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Update dependency socket.io to v2.4.0 [SECURITY]

Administrator requested to merge renovate/npm-socket.io-vulnerability into main

Created by: renovate[bot]

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This PR contains the following updates:

Package Change Age Adoption Passing Confidence
socket.io 2.3.0 -> 2.4.0 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2020-28481

The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.

Release Notes

socketio/socket.io

v2.4.0

Compare Source

Related blog post: https://socket.io/blog/socket-io-2-4-0/

Features (from Engine.IO)
  • add support for all cookie options (19cc582)
  • disable perMessageDeflate by default (5ad2736)
Bug Fixes
  • security: do not allow all origins by default (f78a575)
  • properly overwrite the query sent in the handshake (d33a619)

⚠ BREAKING CHANGE ⚠

Previously, CORS was enabled by default, which meant that a Socket.IO server sent the necessary CORS headers (Access-Control-Allow-xxx) to any domain. This will not be the case anymore, and you now have to explicitly enable it.

Please note that you are not impacted if:

  • you are using Socket.IO v2 and the origins option to restrict the list of allowed domains
  • you are using Socket.IO v3 (disabled by default)

This commit also removes the support for '*' matchers and protocol-less URL:

io.origins('https://example.com:443'); => io.origins(['https://example.com']);
io.origins('localhost:3000');          => io.origins(['http://localhost:3000']);
io.origins('http://localhost:*');      => io.origins(['http://localhost:3000']);
io.origins('*:3000');                  => io.origins(['http://localhost:3000']);

To restore the previous behavior (please use with caution):

io.origins((_, callback) => {
  callback(null, true);
});

See also:

Thanks a lot to @​ni8walk3r for the security report.

Links:

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