CVE-2022-32213
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).
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 44.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 44.84% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- llhttp/llhttp · nodejs/node.js · fedoraproject/fedora · siemens/sinec ins · debian/debian linux · stormshield/stormshield management center
- Source
- support@hackerone.com
EPSS moved from 46.0% on 30 September 2026 to 44.8% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdfPatch, Third Party Advisory
- https://hackerone.com/reports/1524555Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ICG6CSIB3GUWH5DUSQEVX53MOJW7LYK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCNN3YG2BCLS4ZEKJ3CLSUT6AS7AXTH3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMQK5L5SBYD47QQZ67LEMHNQ662GH3OY/
- https://nodejs.org/en/blog/vulnerability/july-2022-security-releases/Patch, Vendor Advisory
- https://www.debian.org/security/2023/dsa-5326Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdfPatch, Third Party Advisory
- https://hackerone.com/reports/1524555Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ICG6CSIB3GUWH5DUSQEVX53MOJW7LYK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCNN3YG2BCLS4ZEKJ3CLSUT6AS7AXTH3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMQK5L5SBYD47QQZ67LEMHNQ662GH3OY/
- https://nodejs.org/en/blog/vulnerability/july-2022-security-releases/Patch, Vendor Advisory
- https://www.debian.org/security/2023/dsa-5326Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.