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Fencer Vulns
high 7.5

CVE-2023-30589 json

llhttp vulnerable to HTTP request smuggling

published 2023-06-30 3 y ago modified 2026-10-08 31 d ago also BIT-node-2023-30589 , BIT-node-min-2023-30589 , EUVD-2023-2033 , GHSA-cggh-pq45-6h9x

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

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

Patch / fix

  • npm llhttp 8.1.1
  • bitnami node 16.20.1, 18.16.1, 20.3.1
  • bitnami node-min 16.20.1, 18.16.1, 20.3.1
  • NodeJS Node 16.20.1, 18.16.1, 20.3.1
  • nodejs Debian 12 18.19.0+dfsg-6~deb12u1
  • nodejs Debian 14, Debian 13 18.13.0+dfsg1-1.1

debian advisories DEBIAN-CVE-2023-30589

  • npm RHEL 8 1:9.5.1-1.18.16.1.1.module+el8.8.0+19438+94e84959
  • nodejs RHEL 8 1:18.16.1-1.module+el8.8.0+19438+94e84959
  • nodejs-nodemon RHEL 8 2.0.20-2.module+el8.8.0+18432+27f188ac
  • nodejs-full-i18n RHEL 8 1:18.16.1-1.module+el8.8.0+19438+94e84959
  • nodejs-packaging RHEL 8 2021.06-4.module+el8.7.0+15582+19c314fa
  • nodejs-packaging-bundler RHEL 8 2021.06-4.module+el8.7.0+15582+19c314fa
  • npm RHEL 8 1:8.19.4-1.16.20.1.1.module+el8.8.0+19440+ee8dbee5
  • nodejs RHEL 8 1:16.20.1-1.module+el8.8.0+19440+ee8dbee5

red hat advisories RHSA-2023:5361RHSA-2023:5533RHSA-2023:4536RHSA-2023:4537RHSA-2023:4330RHSA-2023:4331

  • nodejs12 SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +8 more 12.22.12-150200.4.50.1
  • nodejs14 SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +7 more 14.21.3-150200.15.49.1
  • nodejs14 SLE Module for Web and Scripting 12 14.21.3-6.46.1
  • nodejs16 SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +3 more 16.20.1-150300.7.24.2
  • nodejs18 SLE Module for Web and Scripting 15 SP5, SLE Module for Web and Scripting 15 SP4, openSUSE Leap 15.5 +1 more 18.16.1-150400.9.9.1
  • nodejs16 SLE Module for Web and Scripting 15 SP4, openSUSE Leap 15.4 16.20.1-150400.3.21.1
  • nodejs18 SLE Module for Web and Scripting 12 18.16.1-8.9.1
  • nodejs16 SLE Module for Web and Scripting 12 16.20.1-8.30.1

suse advisories SUSE-SU-2023:3455-1SUSE-SU-2023:3408-1SUSE-SU-2023:3306-1SUSE-SU-2023:2861-1SUSE-SU-2023:2669-1SUSE-SU-2023:2663-1

  • python-httptools openSUSE Tumbleweed 0.8.0-1.3
  • nodejs20 openSUSE Tumbleweed 20.3.1-1.1

opensuse advisories openSUSE-SU-2026:12009-1openSUSE-SU-2024:13021-1

  • npm AlmaLinux 8 1:9.5.1-1.18.16.1.1.module_el8.8.0+3595+0818e803
  • nodejs AlmaLinux 8 1:18.16.1-1.module_el8.8.0+3595+0818e803
  • nodejs-nodemon AlmaLinux 8 2.0.20-2.module_el8.8.0+3587+ee652244
  • nodejs-full-i18n AlmaLinux 8 1:18.16.1-1.module_el8.8.0+3595+0818e803
  • nodejs-packaging AlmaLinux 8 2021.06-4.module_el8.7.0+3343+ea2b7901
  • nodejs-packaging-bundler AlmaLinux 8 2021.06-4.module_el8.7.0+3343+ea2b7901
  • npm AlmaLinux 8 1:8.19.4-1.16.20.1.1.module_el8.8.0+3594+e74fe53f
  • nodejs AlmaLinux 8 1:16.20.1-1.module_el8.8.0+3594+e74fe53f

almalinux advisories ALSA-2023:4536ALSA-2023:4537ALSA-2023:4330ALSA-2023:4331

  • nodejs-packaging Rocky Linux 9 2021.06-4.module+el9.7.0+40022+9ecc286c
  • nodejs Rocky Linux 8 1:18.16.1-1.module+el8.8.0+1413+a47876c7
  • nodejs-nodemon Rocky Linux 8 2.0.20-2.module+el8.7.0+1177+510ae886
  • nodejs-packaging Rocky Linux 8 2021.06-4.module+el8.7.0+1072+5b168780
  • nodejs-nodemon Rocky Linux 8 2.0.20-3.module+el8.7.0+1178+d52dba78
  • nodejs-packaging Rocky Linux 8 25-1.module+el8.7.0+1108+49363b0d

rocky linux advisories RLSA-2023:4330RLSA-2023:4536RLSA-2023:4537

  • openjdk17 Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 17.0.9_p8-r0

alpine advisories ALPINE-CVE-2023-30589

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nodejs CBL-Mariner 2.0 16.20.1-2
  • nodejs18 CBL-Mariner 2.0 18.17.1-2

azure linux advisories AZL-27278AZL-27279

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-30589 updated cvss 7.0

nodejs: HTTP Request Smuggling via Empty headers separated by CR

  • Red Hat Enterprise Linux 8 npm, nodejs, nodejs-libs, nodejs-nodemon, nodejs-full-i18n, nodejs-packaging, +1 more Red Hat Software Collections rh-nodejs14-npm, rh-nodejs14-nodejs, rh-nodejs14-nodejs-full-i18n
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) nodejs 16.20.1-1.module+el8.8.0+19440+ee8dbee5, nodejs 18.16.1-1.module+el8.8.0+19438+94e84959, nodejs-packaging 25-1.module+el8.5.0+10992+fac5fe06, npm 9.5.1-1.18.16.1.1.module+el8.8.0+19438+94e84959, npm 8.19.4-1.16.20.1.1.module+el8.8.0+19440+ee8dbee5, nodejs-nodemon 2.0.20-2.module+el8.8.0+18432+27f188ac, +5 more
    fixed: vendor fix RHSA-2023:4537
  • Red Hat Enterprise Linux AppStream (v. 9) nodejs 16.20.1-1.el9_2, nodejs-libs 16.20.1-1.el9_2, npm 8.19.4-1.16.20.1.1.el9_2, nodejs-full-i18n 16.20.1-1.el9_2, nodejs 18.16.1-1.module+el9.2.0.z+19424+78951f07, npm 9.5.1-1.18.16.1.1.module+el9.2.0.z+19424+78951f07, +4 more
    fixed: vendor fix RHSA-2023:4331
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) nodejs 16.20.2-2.module+el8.6.0+19897+9590a839, nodejs-packaging 26-1.module+el8.6.0+19856+c0c87259, nodejs-nodemon 3.0.1-1.module+el8.6.0+19765+366b9144, npm 8.19.4-1.16.20.2.2.module+el8.6.0+19897+9590a839, nodejs-full-i18n 16.20.2-2.module+el8.6.0+19897+9590a839
    fixed: vendor fix RHSA-2023:5361
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) nodejs 16.20.2-1.el9_0, nodejs-libs 16.20.2-1.el9_0, npm 8.19.4-1.16.20.2.1.el9_0, nodejs-full-i18n 16.20.2-1.el9_0
    fixed: vendor fix RHSA-2023:5533

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
31 d ago

Exploit prediction

3.91% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/2001873 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
npm llhttp
<8.1.1
8.1.1
bitnami node
>=16.0.0, <16.20.1
>=18.0.0, <18.16.1
>=20.0.0, <20.3.1
16.20.1
18.16.1
20.3.1
bitnami node-min
>=16.0.0, <16.20.1
>=18.0.0, <18.16.1
>=20.0.0, <20.3.1
16.20.1
18.16.1
20.3.1

Affected products

  • NodeJS Node

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.