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
Published 2023-07-01 00:15:10
Updated 2024-06-21 19:15:27
Source HackerOne
View at NVD,   CVE.org

Products affected by CVE-2023-30589

Exploit prediction scoring system (EPSS) score for CVE-2023-30589

0.21%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 59 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-30589

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
3.9
3.6
NIST
7.5
HIGH AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
N/A
N/A
Oracle:CPUOct2023

References for CVE-2023-30589

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