CVE-2026-23842

Published: Jan 19, 2026Modified: Feb 5, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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.

Affected (1)

Products: Chatterbot: Chatterbot

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Chatterbot Chatterbot	Before 1.2.11

Related CWEs

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (5)

https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf

Source: security-advisories@github.com

Patch

https://github.com/gunthercox/ChatterBot/pull/2432

Source: security-advisories@github.com

Issue Tracking

https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11

Source: security-advisories@github.com

ProductRelease Notes

https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72

Source: security-advisories@github.com

ExploitVendor Advisory

https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f

Source: security-advisories@github.com

Exploit

Timeline

No history available yet.