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CVE-2026-93761

Estado: AnalizadaAlta (8.7)—

An inefficient regular expression complexity issue in the in-memory query evaluation component of the Mongoid library may allow an unauthenticated party to cause excessive processing within an embedding application process. Applications that place user-supplied text into a pattern-matching query condition on an embedded association may become unresponsive.

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.

Aplicación expuesta a internet (AV:N, PR:N, UI:N) explotada mediante entrada de usuario en consultas regex ineficientes causando DoS por consumo de recursos (VA:H).

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

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-93761",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2026-93761",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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            },
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              "technicalImpact": "partial"
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          "integrityImpact": "NONE",
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    "cvssMetricV40": [
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
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          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "product": "Mongoid",
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              "version": "7.6.0",
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  "published": "2026-09-18T18:18:34.917",
  "references": [
    {
      "url": "https://jira.mongodb.org/browse/MONGOID-5981",
      "tags": [
        "Permissions Required"
      ],
      "source": "cna@mongodb.com"
    }
  ],
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          "value": "CWE-1333"
        }
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      "value": "An inefficient regular expression complexity issue in the in-memory query evaluation component of the Mongoid library may allow an unauthenticated party to cause excessive processing within an embedding application process. Applications that place user-supplied text into a pattern-matching query condition on an embedded association may become unresponsive."
    }
  ],
  "lastModified": "2026-09-24T16:06:04.550",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}