Node.js · Report #3582376

HTTP Response Queue Poisoning via TOCTOU Race Condition in `http.Agent`

Validstatus

lowseverity

11upvotes

25 Jun 2026disclosed

Summary

A flaw in Node.js HTTP Agent can cause a client to accept as valid a response that is send before the client has sent the request.

This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.

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