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prionPRIOn knowledge basePRION:CVE-2023-30589
HistoryJul 01, 2023 - 12:15 a.m.

Crlf injection

2023-07-0100:15:00
PRIOn knowledge base
www.prio-n.com
5
llhttp parser
crlf injection
http request smuggling
node.js
v16
v18
v20

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.3%

The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests. This can lead to HTTP Request Smuggling (HRS).

The CR character (without LF) is sufficient to delimit HTTP header fields in the llhttp parser. According to RFC7230 section 3, only the CRLF sequence should delimit each header-field. This impacts all Node.js active versions: v16, v18, and, v20