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CVE-2020-26238

Estado: ModificadaAlta (8.1)—

Cron-utils is a Java library to parse, validate, migrate crons as well as get human readable descriptions for them. In cron-utils before version 9.1.3, a template Injection vulnerability is present. This enables attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Only projects using the @Cron annotation to validate untrusted Cron expressions are affected. This issue was patched in version 9.1.3.

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 (1)

Cron-utils Project — Cron-utils

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-26238",
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
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  "published": "2020-11-25T00:15:10.747",
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      "description": [
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          "lang": "en",
          "value": "CWE-74"
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  "descriptions": [
    {
      "lang": "en",
      "value": "Cron-utils is a Java library to parse, validate, migrate crons as well as get human readable descriptions for them. In cron-utils before version 9.1.3, a template Injection vulnerability is present. This enables attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Only projects using the @Cron annotation to validate untrusted Cron expressions are affected. This issue was patched in version 9.1.3."
    },
    {
      "lang": "es",
      "value": "Cron-utils es una biblioteca de Java para analizar, comprobar, migrar crons y obtener descripciones legibles por humanos para ellos.&#xa0;En cron-utils versiones anteriores a  9.1.3, se presenta una vulnerabilidad de inyección de plantilla.&#xa0;Esto permite a atacantes inyectar expresiones EL de Java arbitrarias, conllevando a una vulnerabilidad de Ejecución de Código Remota (RCE) no autenticada.&#xa0;Solo están afectados los proyectos que usan la anotación @Cron para comprobar expresiones Cron que no son confiables.&#xa0;Este problema se corrigió en la versión 9.1.3"
    }
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  "lastModified": "2026-06-17T03:07:53.570",
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