CVE-2026-23842 | THREATINT

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.

PUBLISHED Reserved 2026-01-16 | Published 2026-01-19 | Updated 2026-01-20 | Assigner GitHub_M

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-400: Uncontrolled Resource Consumption

Product status

< 1.2.11

affected

References

github.com/...terBot/security/advisories/GHSA-v4w8-49pv-mf72

github.com/gunthercox/ChatterBot/pull/2432

github.com/...ommit/de89fe648139f8eeacc998ad4524fab291a378cf

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

github.com/...ts/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f

cve.org (CVE-2026-23842)

nvd.nist.gov (CVE-2026-23842)

Download JSON