GitHub Advisoryadvisory · npm

GHSA-cggh-pq45-6h9x llhttp vulnerable to HTTP request smuggling

HIGH Published 2023-07-01 Modified 2025-11-04 Official page ↗
Aliases
CVE-2023-30589
Ecosystem
npm
Packages
llhttp
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Reviewed
2023-07-11

Affected packages

• npm llhttp: < 8.1.1 → fixed in 8.1.1

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

Related

Alias · CVE (1)

  • CVE-2023-30589 The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests. vulnerability

References