The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does not correctly handle multi-line Transfer-Encoding hea
The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does not correctly handle multi-line Transfer-Encoding headers. This can lead to HTTP Request Smuggling (HRS).
- ALSA-2022:6448
- ALSA-2022:6595
- DSA-5326-1
- openSUSE-SU-2024:12370-1
- openSUSE-SU-2024:12376-1
- RHSA-2022:6389
- RHSA-2022:6448
- RHSA-2022:6449
- RHSA-2022:6595
- RHSA-2022:6985
- RLSA-2022:6448
- RLSA-2022:6449
- RLSA-2022:6595
- SUSE-SU-2022:2415-1
- SUSE-SU-2022:2416-1
- SUSE-SU-2022:2417-1
- SUSE-SU-2022:2425-1
- SUSE-SU-2022:2430-1
- SUSE-SU-2022:2491-1
- SUSE-SU-2022:2551-1
- Published
- Jul 14, 2022
- Updated
- Jun 17, 2026
- EPSS
- 68.8% · 99th percentile
- CWE
- CWE-444
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Report tools
Action score
47
Plan
Add it to your regular patch cycle.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 21 / 30 · 68.8%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| llhttp | llhttp | cpe:2.3:a:llhttp:llhttp |
| nodejs | node.js | cpe:2.3:a:nodejs:node.js |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| siemens | sinec ins | cpe:2.3:a:siemens:sinec_ins |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| stormshield | stormshield management center | cpe:2.3:a:stormshield:stormshield_management_center |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- nodejs node.js14.0.0 and later · up to 14.14.0 inclusive
- nodejs node.js14.15.0 and later · before 14.20.0
- nodejs node.js16.0.0 and later · up to 16.12.0 inclusive
- nodejs node.js16.13.0 and later · before 16.16.0
- nodejs node.js18.0.0 and later · before 18.5.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (hackerone). Independent of NVD's CPE analysis and usually ahead of it.
NodeJS Node
- 4.0 and later · before 4.*affected · semver
- 5.0 and later · before 5.*affected · semver
- 6.0 and later · before 6.*affected · semver
- 7.0 and later · before 7.*affected · semver
- 8.0 and later · before 8.*affected · semver
- 9.0 and later · before 9.*affected · semver
- 10.0 and later · before 10.*affected · semver
- 11.0 and later · before 11.*affected · semver
- 12.0 and later · before 12.*affected · semver
- 13.0 and later · before 13.*affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | nodejs | before 1:14.20.0-2.module_el8.6.0+3261+490666b3 | 1:14.20.0-2.module_el8.6.0+3261+490666b3 |
| AlmaLinux:8 | nodejs-devel | before 1:14.20.0-2.module_el8.6.0+3261+490666b3 | 1:14.20.0-2.module_el8.6.0+3261+490666b3 |
| AlmaLinux:8 | nodejs-docs | before 1:14.20.0-2.module_el8.6.0+3261+490666b3 | 1:14.20.0-2.module_el8.6.0+3261+490666b3 |
| AlmaLinux:8 | nodejs-full-i18n | before 1:14.20.0-2.module_el8.6.0+3261+490666b3 | 1:14.20.0-2.module_el8.6.0+3261+490666b3 |
| AlmaLinux:8 | nodejs-nodemon | before 2.0.19-2.module_el8.6.0+3261+490666b3 | 2.0.19-2.module_el8.6.0+3261+490666b3 |
| AlmaLinux:8 | nodejs-packaging | before 23-3.module_el8.5.0+2618+8d46dafd | 23-3.module_el8.5.0+2618+8d46dafd |
| AlmaLinux:8 | npm | before 1:6.14.17-1.14.20.0.2.module_el8.6.0+3261+490666b3 | 1:6.14.17-1.14.20.0.2.module_el8.6.0+3261+490666b3 |
| AlmaLinux:9 | nodejs | before 1:16.16.0-1.el9_0 | 1:16.16.0-1.el9_0 |
| AlmaLinux:9 | nodejs-docs | before 1:16.16.0-1.el9_0 | 1:16.16.0-1.el9_0 |
| AlmaLinux:9 | nodejs-full-i18n | before 1:16.16.0-1.el9_0 | 1:16.16.0-1.el9_0 |
| AlmaLinux:9 | nodejs-libs | before 1:16.16.0-1.el9_0 | 1:16.16.0-1.el9_0 |
| AlmaLinux:9 | nodejs-nodemon | before 2.0.19-1.el9_0 | 2.0.19-1.el9_0 |
| AlmaLinux:9 | npm | before 1:8.11.0-1.16.16.0.1.el9_0 | 1:8.11.0-1.16.16.0.1.el9_0 |
| Alpine:v3.13 | nodejs | before 14.20.1-r0 | 14.20.1-r0 |
| Alpine:v3.15 | nodejs | before 16.17.1-r0 | 16.17.1-r0 |
| Debian:11 | nodejs | before 12.22.12~dfsg-1~deb11u3 | 12.22.12~dfsg-1~deb11u3 |
| Debian:12 | nodejs | before 18.6.0+dfsg-3 | 18.6.0+dfsg-3 |
| openSUSE:Tumbleweed | nodejs16 | before 16.17.1-1.1 | 16.17.1-1.1 |
| openSUSE:Tumbleweed | nodejs18 | before 18.10.0-1.1 | 18.10.0-1.1 |
| Red Hat:enterprise_linux:8::appstream | nodejs | before 1:16.16.0-3.module+el8.6.0+16248+76b0e185 | 1:16.16.0-3.module+el8.6.0+16248+76b0e185 |
| Red Hat:enterprise_linux:8::appstream | nodejs | before 1:14.20.0-2.module+el8.6.0+16231+7c1b33d9 | 1:14.20.0-2.module+el8.6.0+16231+7c1b33d9 |
| Red Hat:enterprise_linux:8::appstream | nodejs-debuginfo | before 1:14.20.0-2.module+el8.6.0+16231+7c1b33d9 | 1:14.20.0-2.module+el8.6.0+16231+7c1b33d9 |
| Red Hat:enterprise_linux:8::appstream | nodejs-debuginfo | before 1:16.16.0-3.module+el8.6.0+16248+76b0e185 | 1:16.16.0-3.module+el8.6.0+16248+76b0e185 |
| Red Hat:enterprise_linux:8::appstream | nodejs-debugsource | before 1:16.16.0-3.module+el8.6.0+16248+76b0e185 | 1:16.16.0-3.module+el8.6.0+16248+76b0e185 |
+67
Same product
llhttp: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-32214The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does not strictly use the CRLF sequence to delimit HTTP re51Plan
- CVE-2022-32213The 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 he39Monitor
- CVE-2022-35256The llhttp parser in the http module in Node v18.7.0 does not correctly handle header fields that are not terminated with CLRF.27Monitor
- CVE-2021-22959The parser in accepts requests with a space (SP) right after the header name before the colon.27Monitor
- CVE-2021-22960The parse function in llhttp < 2.1.4 and < 6.0.6.27Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| NodeJS Node | 10.* | Vendor (CNA) |
| NodeJS Node | 11.* | Vendor (CNA) |
| NodeJS Node | 12.* | Vendor (CNA) |
| NodeJS Node | 13.* | Vendor (CNA) |
| NodeJS Node | 14.20.1 | Vendor (CNA) |
| NodeJS Node | 15.* | Vendor (CNA) |
| NodeJS Node | 16.17.1 | Vendor (CNA) |
| NodeJS Node | 17.* | Vendor (CNA) |
| NodeJS Node | 18.9.1 | Vendor (CNA) |
| NodeJS Node | 4.* | Vendor (CNA) |
| NodeJS Node | 5.* | Vendor (CNA) |
| NodeJS Node | 6.* | Vendor (CNA) |
| NodeJS Node | 7.* | Vendor (CNA) |
| NodeJS Node | 8.* | Vendor (CNA) |
| NodeJS Node | 9.* | Vendor (CNA) |
| almalinux:nodejs | 1:14.20.0-2.module_el8.6.0+3261+490666b3 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:nodejs-devel | 1:14.20.0-2.module_el8.6.0+3261+490666b3 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:nodejs-docs | 1:14.20.0-2.module_el8.6.0+3261+490666b3 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:nodejs-full-i18n | 1:14.20.0-2.module_el8.6.0+3261+490666b3 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:nodejs-libs | 1:16.16.0-1.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nodejs-nodemon | 2.0.19-2.module_el8.6.0+3261+490666b3 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:nodejs-packaging | 23-3.module_el8.5.0+2618+8d46dafd · AlmaLinux:8 | Package registry (OSV) |
| almalinux:npm | 1:6.14.17-1.14.20.0.2.module_el8.6.0+3261+490666b3 · AlmaLinux:8 | Package registry (OSV) |
| alpine:nodejs | 14.20.1-r0 · Alpine:v3.13 | Package registry (OSV) |
| debian:nodejs | 18.6.0+dfsg-3 · Debian:12 | Package registry (OSV) |
| opensuse:nodejs10 | 10.24.1-150000.1.47.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:nodejs12 | 12.22.12-150200.4.35.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:nodejs14 | 14.20.0-150200.15.34.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:nodejs16 | 16.16.0-150400.3.3.2 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:nodejs18 | 18.13.0-150400.9.3.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
+24
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- low · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ICG6CSIB3GUWH5DUSQEVX53MOJW7LYK/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCNN3YG2BCLS4ZEKJ3CLSUT6AS7AXTH3/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMQK5L5SBYD47QQZ67LEMHNQ662GH3OY/
- nodejs.org/en/blog/vulnerability/july-2022-security-releases/
- www.debian.org/security/2023/dsa-5326
Vendor advisories and official records. Exploit/PoC links are deliberately left out.