CVE-2023-30589
High
Description
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
SeverityHigh
CVSS7.5
Exploit probability90. percentile3.9%
Product
Nodejs Node.js
PublishedJul 1, 2023
First seenJul 1, 2023
How to fix
Update
- nodejs node.js16.20.1, 18.16.1, 20.3.1 or later
- llhttp8.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nodejs node.js | 16.0.0 ≤ v < 16.20.1, 18.0.0 ≤ v < 18.16.1, 20.0.0 ≤ v < 20.3.1 | 16.20.1, 18.16.1, 20.3.1 |
| fedoraproject fedora | 37, 38 | — |
| llhttpnpm | v < 8.1.1 | 8.1.1 |
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