A AegiFlow
HIGHCVSS 7.5

CVE-2023-30589

CVE-2023-30589 updated by NVD

Modified
2026-09-20
Sources
nvd

Summary

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

Affected packages

EcosystemPackageAffected versionsFixed versions
Node.jsnode.js[object Object], [object Object], [object Object]

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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