The llhttp parser in the http module in Node v18.7.0 does not correctly handle header…
Priority HIGH 68CWE-444Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02764 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Node (NodeJS): 14.20.1, 16.17.1, 18.9.1Red Hat: 8 advisories
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NodeJS | Node | 4.0 and later; 5.0 and later; 6.0 and later; 7.0 and later; 8.0 and later; 9.0 and later; 10.0 and later; 11.0 and later; 12.0 and later; 13.0 and later; 14.0 to before 14.20.1; 15.0 and later; 16.0 to before 16.17.1; 17.0 and later; 18.0 to before 18.9.1 | 14.20.1, 16.17.1, 18.9.1 | Patch available | CNA |
- Node VendorNodeJS Affected 4.0 and later; 5.0 and later; 6.0 and later; 7.0 and later; 8.0 and later; 9.0 and later; 10.0 and later; 11.0 and later; 12.0 and later; 13.0 and later; 14.0 to before 14.20.1; 15.0 and later; 16.0 to before 16.17.1; 17.0 and later; 18.0 to before 18.9.1 Fixed in 14.20.1, 16.17.1, 18.9.1 Patch available CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 14.0.0 – 14.14.0 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* | 14.15.0 to before 14.20.1 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 16.0.0 – 16.12.0 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* | 16.13.0 to before 16.17.1 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 18.0.0 to before 18.9.1 | Vulnerable | NodeJS |
| cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:* | before 6.0.10 | Vulnerable | Llhttp |
| cpe:2.3:a:siemens:sinec_ins:*:*:*:*:*:*:*:* | before 1.0 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:-:*:*:*:*:*:* | 1.0 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp1:*:*:*:*:*:* | 1.0 sp1 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp2:*:*:*:*:*:* | 1.0 sp2 | Vulnerable | Siemens |
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 14.0.0 – 14.14.0 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* Versions 14.15.0 to before 14.20.1 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 16.0.0 – 16.12.0 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* Versions 16.13.0 to before 16.17.1 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 18.0.0 to before 18.9.1 Vulnerable ·NodeJS
- cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:* Versions before 6.0.10 Vulnerable ·Llhttp
- cpe:2.3:a:siemens:sinec_ins:*:*:*:*:*:*:*:* Versions before 1.0 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:-:*:*:*:*:*:* Versions 1.0 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp1:*:*:*:*:*:* Versions 1.0 sp1 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp2:*:*:*:*:*:* Versions 1.0 sp2 Vulnerable ·Siemens
Remediation
- Fix · CNA Node (NodeJS) Fixed in 14.20.1, 16.17.1, 18.9.1
Red Hat 8 advisories
- RHSA-2023:1742 Released 2023-04-12 · Red Hat rating Importantnodejs:14 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) nodejs-1:14.21.3-1.module+el8.6.0+18532+cbe6f646.aarch64::nodejs:14, nodejs-1:14.21.3-1.module+el8.6.0+18532+cbe6f646.ppc64le::nodejs:14, nodejs-1:14.21.3-1.module+el8.6.0+18532+cbe6f646.s390x::nodejs:14 +19
- RHSA-2023:1533 Released 2023-03-30 · Red Hat rating Importantnodejs:14 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream EUS (v.8.4) nodejs-1:14.21.3-1.module+el8.4.0+18317+43f5ac16.aarch64::nodejs:14, nodejs-1:14.21.3-1.module+el8.4.0+18317+43f5ac16.ppc64le::nodejs:14, nodejs-1:14.21.3-1.module+el8.4.0+18317+43f5ac16.s390x::nodejs:14 +19
- RHSA-2023:0321 Released 2023-01-23 · Red Hat rating Moderatenodejs and nodejs-nodemon security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) nodejs-1:16.18.1-3.el9_1, nodejs-docs-1:16.18.1-3.el9_1, nodejs-full-i18n-1:16.18.1-3.el9_1 +3
Show 5 more Red Hat advisories
- RHSA-2022:7830 Released 2022-11-08 · Red Hat rating Moderatenodejs:14 security update
- Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:14.20.1-2.module+el8.7.0+16991+b0a68a3e.aarch64::nodejs:14, nodejs-1:14.20.1-2.module+el8.7.0+16991+b0a68a3e.ppc64le::nodejs:14, nodejs-1:14.20.1-2.module+el8.7.0+16991+b0a68a3e.s390x::nodejs:14 +19
- RHSA-2022:7821 Released 2022-11-08 · Red Hat rating Importantnodejs:18 security update
- Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:18.9.1-1.module+el8.7.0+16806+4109802b.aarch64::nodejs:18, nodejs-1:18.9.1-1.module+el8.7.0+16806+4109802b.ppc64le::nodejs:18, nodejs-1:18.9.1-1.module+el8.7.0+16806+4109802b.s390x::nodejs:18 +20
- RHSA-2022:7044 Released 2022-10-19 · Red Hat rating Moderaterh-nodejs14-nodejs security update
- Red Hat Software Collections for RHEL Workstation(v. 7) rh-nodejs14-nodejs-14.20.1-2.el7, rh-nodejs14-nodejs-devel-14.20.1-2.el7, rh-nodejs14-nodejs-docs-14.20.1-2.el7 +1
- Red Hat Software Collections for RHEL(v. 7) rh-nodejs14-nodejs-14.20.1-2.el7, rh-nodejs14-nodejs-devel-14.20.1-2.el7, rh-nodejs14-nodejs-docs-14.20.1-2.el7 +1
- RHSA-2022:6963 Released 2022-10-18 · Red Hat rating Importantnodejs security update
- Red Hat Enterprise Linux AppStream (v. 9) nodejs-1:16.17.1-1.el9_0, nodejs-docs-1:16.17.1-1.el9_0, nodejs-full-i18n-1:16.17.1-1.el9_0 +2
- RHSA-2022:6964 Released 2022-10-17 · Red Hat rating Importantnodejs:16 security update
- Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:16.17.1-1.module+el8.6.0+16848+a483195a.aarch64::nodejs:16, nodejs-1:16.17.1-1.module+el8.6.0+16848+a483195a.ppc64le::nodejs:16, nodejs-1:16.17.1-1.module+el8.6.0+16848+a483195a.s390x::nodejs:16 +19
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:6964, RHSA-2022:7821, RHSA-2022:7830 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2022:6963, RHSA-2023:0321 |
| Red Hat Enterprise Linux AppStream EUS (v.8.4) | Fixed | RHSA-2023:1533 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2023:1742 |
| Red Hat Software Collections for RHEL Workstation(v. 7) | Fixed | RHSA-2022:7044 |
| Red Hat Software Collections for RHEL(v. 7) | Fixed | RHSA-2022:7044 |
Not affected: 2 products
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux AppStream (v. 9)
Timeline
- 2026-10-02 Threatist record created from CVE-2022-35256
- 2026-10-03 Alias added: GHSA-rc2m-q589-vpqx
References
More NodeJS Node.js vulnerabilities
- TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2016-01993 The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other… CVSS 3.1HIGH 7.5
- TI-2024-03325 Command injection vulnerability in programing languages on Microsoft Windows operating system. CVSS 3.1CRITICAL 9.8
- TI-2022-03472 X.509 Email Address Variable Length Buffer Overflow CVSS 3.1HIGH 7.5
- TI-2022-03315 X.509 Email Address 4-byte Buffer Overflow CVSS 3.1HIGH 7.5
Sources
- CVE-2022-35256 · CVE Program
- CVE-2022-35256 · NVD
- FIRST EPSS
- GHSA-rc2m-q589-vpqx · GitHub Advisory Database · CC BY 4.0
- CVE-2022-35256 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences