CVE-2026-23842
HIGH
GHSA-v4w8-49pv-mf72
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4Description
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.
Analysis
ChatterBot versions through 1.2.10 suffer from denial-of-service vulnerabilities due to improper connection pool management that allows attackers to exhaust database connections through concurrent requests to the get_response() method, causing persistent service unavailability. Public exploit code exists for this vulnerability, which affects all deployments of the affected ChatterBot versions and requires manual service restart to recover. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.
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External POC / Exploit Code
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