Back to search
CVE-2023-30589
Published: Jun 30, 2023
Modified: Nov 4, 2025
PUBLISHED
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
| Vendor | Product | Versions |
|---|---|---|
NodeJS | Node | affected 4.0 - < 4.*affected 5.0 - < 5.*affected 6.0 - < 6.*affected 7.0 - < 7.*affected 8.0 - < 8.*+12 more versions |
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now