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    4 vulnerabilities by gunthercox

    CVE-2026-58198 (GCVE-0-2026-58198)

    Vulnerability from nvd – Published: 2026-07-09 18:32 – Updated: 2026-07-09 19:12
    VLAI
    Title
    ChatterBot: Symlink-Following Arbitrary Write via UbuntuCorpusTrainer
    Summary
    ChatterBot is a machine learning, conversational dialog engine for creating chat bots. Prior to 1.2.14, UbuntuCorpusTrainer.extract() uses a predictable home-rooted output directory (~/ubuntu_data/ubuntu_dialogs) with a check-then-create pattern followed by tar.extractall(path=self.data_path), allowing a local attacker who pre-plants a symlink at the predictable path to cause archive contents to be written through the symlink to an attacker-chosen directory. This issue is fixed in version 1.2.14.
    Severity
    5.5 (Medium)
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
    • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
    Assigner
    References
    Impacted products
    Vendor Product Version
    gunthercox ChatterBot Affected: < 1.2.14
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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      "title": "ChatterBot: Symlink-Following Arbitrary Write via UbuntuCorpusTrainer"
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    CVE-2026-23842 (GCVE-0-2026-23842)

    Vulnerability from nvd – Published: 2026-01-19 18:39 – Updated: 2026-01-20 20:05
    VLAI
    Title
    ChatterBot has Denial of Service via Database Connection Pool Exhaustion
    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.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    gunthercox ChatterBot Affected: < 1.2.11
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-58198 (GCVE-0-2026-58198)

    Vulnerability from cvelistv5 – Published: 2026-07-09 18:32 – Updated: 2026-07-09 19:12
    VLAI
    Title
    ChatterBot: Symlink-Following Arbitrary Write via UbuntuCorpusTrainer
    Summary
    ChatterBot is a machine learning, conversational dialog engine for creating chat bots. Prior to 1.2.14, UbuntuCorpusTrainer.extract() uses a predictable home-rooted output directory (~/ubuntu_data/ubuntu_dialogs) with a check-then-create pattern followed by tar.extractall(path=self.data_path), allowing a local attacker who pre-plants a symlink at the predictable path to cause archive contents to be written through the symlink to an attacker-chosen directory. This issue is fixed in version 1.2.14.
    Severity
    5.5 (Medium)
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
    • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
    Assigner
    References
    Impacted products
    Vendor Product Version
    gunthercox ChatterBot Affected: < 1.2.14
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-23842 (GCVE-0-2026-23842)

    Vulnerability from cvelistv5 – Published: 2026-01-19 18:39 – Updated: 2026-01-20 20:05
    VLAI
    Title
    ChatterBot has Denial of Service via Database Connection Pool Exhaustion
    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.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    gunthercox ChatterBot Affected: < 1.2.11
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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        },
        {
          "name": "https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf"
        },
        {
          "name": "https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11"
        },
        {
          "name": "https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f"
        }
      ],
      "source": {
        "advisory": "GHSA-v4w8-49pv-mf72",
        "discovery": "UNKNOWN"
      },
      "title": "ChatterBot has Denial of Service via Database Connection Pool Exhaustion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-23842",
    "datePublished": "2026-01-19T18:39:37.059Z",
    "dateReserved": "2026-01-16T15:46:40.842Z",
    "dateUpdated": "2026-01-20T20:05:48.462Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}