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CVE-2021-28170

Estado: ModificadaMedia (5.3)—

In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (4)

Eclipse — Jakarta Expression LanguageOracle — Communications Cloud Native Core PolicyOracle — Weblogic ServerQuarkus — Quarkus

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-28170",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 1.4,
        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
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          "vendor": "The Eclipse Foundation",
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  "published": "2021-05-26T22:15:07.980",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "emo@eclipse.org",
      "description": [
        {
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          "value": "CWE-20"
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    },
    {
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-917"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid."
    },
    {
      "lang": "es",
      "value": "En la implementación de Jakarta Expression Language versiones 3.0.3 y anteriores, un bug en la función ELParserTokenManager permite que las expresiones EL no válidas sean evaluadas como si fueran válidas"
    }
  ],
  "lastModified": "2026-06-17T03:45:56.970",
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