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CVE-2026-23842

Estado: AnalizadaAlta (7.5)—

ChatterBot is a machine learning, conversational dialog engine for creating chat bots. ChatterBot versions up to 1.2.10 are vulnerable to a denial-of-service condition caused by improper database session and connection pool management. Concurrent invocations of the get_response() method can exhaust the underlying SQLAlchemy connection pool, resulting in persistent service unavailability and requiring a manual restart to recover. Version 1.2.11 fixes the issue.

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.

Vector CVSS AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-400 y descripción explícita de agotamiento de conexiones SQLAlchemy = DoS de aplicación (T1499.004).

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)

Chatterbot — Chatterbot

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-23842",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2026-23842",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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              "automatable": "yes"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-01-20T20:04:06.342314Z"
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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    },
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      "value": "ChatterBot es un motor de diálogo conversacional de aprendizaje automático para crear chatbots. Las versiones de ChatterBot hasta la 1.2.10 son vulnerables a una condición de denegación de servicio causada por una gestión inadecuada de la sesión de base de datos y del pool de conexiones. Las invocaciones concurrentes del método get_response() pueden agotar el pool de conexiones subyacente de SQLAlchemy, lo que resulta en una indisponibilidad persistente del servicio y requiere un reinicio manual para recuperarse. La versión 1.2.11 soluciona el problema."
    }
  ],
  "lastModified": "2026-06-17T10:22:11.350",
  "configurations": [
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