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CVE-2020-26311

Estado: AnalizadaAlta (8.7)—

Useragent is a user agent parser for Node.js. All versions as of time of publication contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no patches are available.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso de red sin privilegios (AV:N/PR:N) a servicio Node.js expuesto; ReDoS causa negación de servicio (VA:H). T1499.004 por vulnerabilidad de regex.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Useragent Project — Useragent

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-26311",
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  "metrics": {
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  "published": "2024-10-26T21:15:14.400",
  "references": [
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      "url": "https://github.com/3rd-Eden/useragent/issues/167",
      "tags": [
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    },
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    }
  ],
  "lastModified": "2026-06-17T03:08:03.297",
  "configurations": [
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        {
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