{
  "id": "CVE-2021-46320",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2022-02-04T12:15:07.623",
  "lastModified": "2022-02-09T15:30:40.950",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In OpenZeppelin <=v4.4.0, initializer functions that are invoked separate from contract creation (the most prominent example being minimal proxies) may be reentered if they make an untrusted non-view external call. Once an initializer has finished running it can never be re-executed. However, an exception put in place to support multiple inheritance made reentrancy possible, breaking the expectation that there is a single execution."
    },
    {
      "lang": "es",
      "value": "En OpenZeppelin versiones anteriores a v4.4.0 incluy\u00e9ndola, las funciones del inicializador que son invocadas de forma independiente a la creaci\u00f3n del contrato (el ejemplo m\u00e1s destacado son los proxies m\u00ednimos) pueden volver a entrar si realizan una llamada externa no confiable. Una vez que un inicializador ha terminado de ejecutarse no puede volver a ejecutarse. Sin embargo, una excepci\u00f3n puesta en marcha para soportar la herencia m\u00faltiple hizo posible la reentrada, rompiendo la expectativa de que se presenta una \u00fanica ejecuci\u00f3n"
    }
  ],
  "metrics": {
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      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
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      {
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          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-665"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:openzeppelin:openzeppelin:*:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-9c22-pwxw-p6hx",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
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  ]
}