VULNERABILITY INTELLIGENCE

CVE-2023-30589

CVSS score7.5 HIGH
EPSS probability3.91%
CISA KEVNot currently listed
Published2023-07-01
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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

Weakness classification

  • nvd@nist.gov: NVD-CWE-Other

Primary references