CVE-2026-23842

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:chatterbot:chatterbot:*:*:*:*:*:*:*:*

History

05 Feb 2026, 18:03

Type Values Removed Values Added
First Time Chatterbot chatterbot
Chatterbot
CPE cpe:2.3:a:chatterbot:chatterbot:*:*:*:*:*:*:*:*
References () https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf - () https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf - Patch
References () https://github.com/gunthercox/ChatterBot/pull/2432 - () https://github.com/gunthercox/ChatterBot/pull/2432 - Issue Tracking
References () https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11 - () https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11 - Product, Release Notes
References () https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72 - () https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72 - Exploit, Vendor Advisory
References () https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f - () https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f - Exploit

19 Jan 2026, 19:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-01-19 19:16

Updated : 2026-02-05 18:03


NVD link : CVE-2026-23842

Mitre link : CVE-2026-23842

CVE.ORG link : CVE-2026-23842


JSON object : View

Products Affected

chatterbot

  • chatterbot
CWE
CWE-400

Uncontrolled Resource Consumption