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CVE-2026-23842

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/19/2026

Last Modified2/5/2026

Sourcenvd

Honeypot Sightings0

Affected Products

chatterbot:chatterbot

Weaknesses (CWE)

CWE-400

References

https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf(security-advisories@github.com)

https://github.com/gunthercox/ChatterBot/pull/2432(security-advisories@github.com)

https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11(security-advisories@github.com)

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

https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f(security-advisories@github.com)

IOC Correlations

No correlations recorded

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