AUGUST 4, 2026
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Case File

CVE-2023-30589

HIGH · CVSS 7.5 EPSS 3.91%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-07-01 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. See the original NVD description below for full technical details.

CVE
CVE-2023-30589
Severity
HIGH
CVSS
7.5
EPSS
3.91%

Original NVD 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

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