CVE-2023-30589

Summary

CVE-2023-30589 is a vulnerability affecting the llhttp parser in Node.js versions 16, 18, and 20. unlike the RFC7230 standard, this parser does not strictly require the CRLF sequence to delimit HTTP requests. Instead, the CR character alone can mark the end of a header field. This weakness exposes systems to HTTP Request Smuggling (HRS), allowing attackers to inject and manipulate malicious data into otherwise valid HTTP requests.

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