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CVE-2022-35256
The llhttp parser in the http module in Node v18.7.0 does not correctly handle header fields that are not terminated with CLRF. This may…
Medium6.5EPSS 2.8%
- Published
- Updated
- Reserved
- Assigned by
- hackerone
Description
The llhttp parser in the http module in Node v18.7.0 does not correctly handle header fields that are not terminated with CLRF. This may result in HTTP Request Smuggling.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 2.8% · top 14% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
- affected 4.0 – < 4.*
- affected 5.0 – < 5.*
- affected 6.0 – < 6.*
- affected 7.0 – < 7.*
- affected 8.0 – < 8.*
- affected 9.0 – < 9.*
- affected 10.0 – < 10.*
- affected 11.0 – < 11.*
- affected 12.0 – < 12.*
- affected 13.0 – < 13.*
- affected 14.0 – < 14.20.1
- affected 15.0 – < 15.*
- affected 16.0 – < 16.17.1
- affected 17.0 – < 17.*
- affected 18.0 – < 18.9.1
References (3)
- https://hackerone.com/reports/1675191 (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf (opens in a new tab)x_transferred
- DSA-5326 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-35256)Record last updated .