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CVE Record

CVE-2022-32214: The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does not strictly use the...

The 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 requests. This can lead to HTTP Request Smuggling (HRS).

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2022-32214 is a Node.js HTTP parsing flaw that can let front-end infrastructure and a Node.js backend disagree about where one request ends and the next begins. That mismatch can enable HTTP request smuggling, which may bypass controls or affect other users' traffic when vulnerable Node.js services sit behind proxies or load balancers.

Executive priority

Prioritize remediation for public-facing Node.js applications and any service chain where multiple HTTP parsers handle the same traffic. The absence of KEV evidence lowers emergency pressure, but request smuggling can create high business impact when deployed behind shared edge infrastructure.

Technical view

The Node.js http module's llhttp parser did not strictly require CRLF as the HTTP request delimiter. Affected releases are described as before v14.20.1, v16.17.1, and v18.9.1, with the bundle also listing Node 4 through 18 version families. The weakness maps to CWE-444, inconsistent HTTP request interpretation.

Likely exposure

Most relevant exposure is internet-facing or partner-facing Node.js HTTP services, especially behind reverse proxies, load balancers, WAFs, or caches that parse HTTP differently from Node.js. Standalone internal services have lower urgency but should still be inventoried if they run affected Node.js versions.

Exploitation context

The bundle identifies public disclosure and a HackerOne report, but does not show CISA KEV listing or confirmed active exploitation. Treat this as a practical request-smuggling risk because exploitation depends on deployment topology, not only the vulnerable parser.

Researcher notes

Evidence supports a parser delimiter weakness in Node.js llhttp leading to HTTP request smuggling. The bundle does not provide CVSS, detailed exploit prerequisites, or confirmed exploitation. Validate exposure through version inventory and architecture review rather than active exploit reproduction.

Mitigation direction

  • Upgrade Node.js to vendor-fixed releases or later for the maintained branch in use.
  • Prioritize services behind proxies, load balancers, WAFs, or shared caches.
  • Check Node.js and OS vendor advisories for branch-specific fixed packages.
  • Retire unsupported Node.js major versions where vendor fixes are unavailable.
  • Review edge and backend HTTP parsing consistency after upgrades.

Validation and detection

  • Inventory production Node.js runtime versions across containers, hosts, and build images.
  • Confirm exposed services are not running versions before v14.20.1, v16.17.1, or v18.9.1.
  • Identify Node.js services behind reverse proxies, load balancers, WAFs, or caches.
  • Verify Debian-based systems include the relevant DSA-5326 security update when applicable.
  • Check logs and monitoring for anomalous malformed HTTP request patterns.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-444: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-32214 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
NodeJSNode4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-444 · source CWE mapping

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.