CVE-2023-30589

2023-06-3023:39:59

hackerone

www.cve.org

node.js

http request smuggling

llhttp parser

crlf

http header fields

rfc7230

AI Score

7.8

Confidence

High

EPSS

0.002

Percentile

58.0%

JSON

The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests. This can lead to HTTP Request Smuggling (HRS).

The CR character (without LF) is sufficient to delimit HTTP header fields in the llhttp parser. According to RFC7230 section 3, only the CRLF sequence should delimit each header-field. This impacts all Node.js active versions: v16, v18, and, v20

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "vendor": "Node.js",
    "product": "https://github.com/nodejs/node",
    "versions": [
      {
        "version": "v20.3.1",
        "status": "affected",
        "lessThan": "v20.3.1",
        "versionType": "semver"
      },
      {
        "version": "v18.16.1",
        "status": "affected",
        "lessThan": "v18.16.1",
        "versionType": "semver"
      },
      {
        "version": "v16.20.1",
        "status": "affected",
        "lessThan": "v16.20.1",
        "versionType": "semver"
      }
    ]
  }
]