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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. This can lead to HTTP Request Smuggling (HRS). The CR character (without LF...

Published: Jun 30, 2023Updated: Nov 4, 2025 Sources: CVE List NVD GHSA BDU csafNVD-CWE-Other
NVD MITRE
7.5CVSSHIGH
EPSS Score
3.9%
Top 11.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

llhttp vulnerable to HTTP request smuggling

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

NVD-CWE-Other

Affected Products

Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Red Hat Software CollectionsRed Hat Inc.
On-prem
Operating Systems / linux-distro
Node.jsNode.js FoundationOSS Libraries
АЛЬТ СП 10АО «ИВК»
On-premOS
Operating Systems / linux-distro
OpenJDKOracle Corp.
Library
OSS Libraries / generic-library
red hat inc.commercialUSOperating Systemsaka red hat
node.js foundationoss-projectUSOSS Librariesaka nodejs foundation, node foundation
ао «ивк»commercialRUOperating Systemsaka ivk
oracle corp.commercialUSDatabasesaka oracle
and 4 more affected products View all →

Exploitability

Official Patch Available

References

https://nodejs.org/en/blog/vulnerability/june-2023-security-releases
nodejs.org
https://access.redhat.com/security/cve/cve-2023-30589
access.redhat.com
https://www.cybersecurity-help.cz/vdb/SB2023082404
cybersecurity-help.cz
and 35 more references View all →

Timeline

Published
Jun 30, 2023
Last Updated
Nov 4, 2025

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