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brew-serveit-cve-2024-47220
Vulnerability from osv_homebrew
Published
2026-08-13 17:34
Modified
2026-08-13 17:34
Summary
HTTP Request Smuggling in ruby webrick
Details

An issue was discovered in the WEBrick toolkit through 1.8.1 for Ruby. It allows HTTP request smuggling by providing both a Content-Length header and a Transfer-Encoding header, e.g., "GET /admin HTTP/1.1\r\n" inside of a "POST /user HTTP/1.1\r\n" request. NOTE: the supplier's position is "Webrick should not be used in production."

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": null,
        "range_state": "affected",
        "resource": "webrick",
        "resource_purl": "pkg:gem/webrick@1.8.1",
        "upstream_fixed_in": "1.8.2"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "serveit",
        "purl": "pkg:brew/serveit"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "RubyGems",
        "key": "pkg:gem/webrick@1.8.1",
        "name": "webrick",
        "resource": "webrick",
        "strategy": "registry",
        "subject_version": "1.8.1"
      }
    ]
  },
  "details": "An issue was discovered in the WEBrick toolkit through 1.8.1 for Ruby. It allows HTTP request smuggling by providing both a Content-Length header and a Transfer-Encoding header, e.g., \"GET /admin HTTP/1.1\\r\\n\" inside of a \"POST /user HTTP/1.1\\r\\n\" request. NOTE: the supplier\u0027s position is \"Webrick should not be used in production.\"",
  "id": "BREW-serveit-CVE-2024-47220",
  "modified": "2026-08-13T17:34:36Z",
  "published": "2026-08-13T17:34:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47220"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/webrick/issues/145"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/webrick/issues/145#issuecomment-2369994610"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/webrick/issues/145#issuecomment-2372838285"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/webrick/pull/146/commits/d88321da45dcd230ac2b4585cad4833d6d5e8841"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/webrick/commit/f5faca9222541591e1a7c3c97552ebb0c92733c7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ruby/webrick"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2024-47220.yml"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "HTTP Request Smuggling in ruby webrick",
  "upstream": [
    "GHSA-6f62-3596-g6w7",
    "CVE-2024-47220"
  ]
}



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