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Vulnerability record · CVE-2022-32213 · published 14 July 2022

CVE-2022-32213: Llhttp http request smuggling vulnerability

LLlhttp · Llhttp

The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does not correctly parse and validate Transfer-Encoding headers and can lead to HTTP Request Smuggling (HRS).

6.5 CVSS 3.1 Medium EPSS 44% · top 1.3% CWE-444 · HTTP request smuggling
6.5CVSS 3.1 base score
44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does not correctly parse and validate Transfer-Encoding headers and can lead to HTTP Request Smuggling (HRS).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf PatchThird Party Advisory
https://hackerone.com/reports/1524555 ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ICG6CSIB3GUWH5DUSQEVX5
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCNN3YG2BCLS4ZEKJ3CLSUT
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMQK5L5SBYD47QQZ67LEMHN
https://nodejs.org/en/blog/vulnerability/july-2022-security-releases/ PatchVendor Advisory
https://www.debian.org/security/2023/dsa-5326 Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf PatchThird Party Advisory
https://hackerone.com/reports/1524555 ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ICG6CSIB3GUWH5DUSQEVX5
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCNN3YG2BCLS4ZEKJ3CLSUT
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMQK5L5SBYD47QQZ67LEMHN
https://nodejs.org/en/blog/vulnerability/july-2022-security-releases/ PatchVendor Advisory
https://www.debian.org/security/2023/dsa-5326 Third Party Advisory

Track CVE-2022-32213 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2022-32213), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.