{
  "id": "CVE-2023-23936",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2023-02-16T18:15:10.877",
  "lastModified": "2023-02-24T19:14:28.203",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize the `headers.host` string before passing to undici."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5
      },
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        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5
      }
    ]
  },
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    },
    {
      "source": "security-advisories@github.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-93"
        }
      ]
    }
  ],
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    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*",
              "versionStartIncluding": "16.0.0",
              "versionEndExcluding": "16.19.1",
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              "vulnerable": true,
              "criteria": "cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*",
              "versionStartIncluding": "2.0.0",
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  "references": [
    {
      "url": "https://github.com/nodejs/undici/commit/a2eff05401358f6595138df963837c24348f2034",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
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    {
      "url": "https://github.com/nodejs/undici/releases/tag/v5.19.1",
      "source": "security-advisories@github.com",
      "tags": [
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    {
      "url": "https://github.com/nodejs/undici/security/advisories/GHSA-5r9g-qh6m-jxff",
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
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      "url": "https://hackerone.com/reports/1820955",
      "source": "security-advisories@github.com",
      "tags": [
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        "Third Party Advisory"
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  ]
}