FKIE_CVE-2026-23842

Vulnerability from fkie_nvd - Published: 2026-01-19 19:16 - Updated: 2026-01-26 15:05
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf
security-advisories@github.comhttps://github.com/gunthercox/ChatterBot/pull/2432
security-advisories@github.comhttps://github.com/gunthercox/ChatterBot/releases/tag/1.2.11
security-advisories@github.comhttps://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72
security-advisories@github.comhttps://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2026-23842",
  "lastModified": "2026-01-26T15:05:39.840",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-19T19:16:04.510",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gunthercox/ChatterBot/pull/2432"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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