Description
socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.
Remediation
References
https://blog.caller.xyz/socketio-engineio-dos/
https://github.com/bcaller/kill-engine-io
https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55
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