CVE-2026-23842

Name: CVE-2026-23842
Creator: NVD / NIST
Published: 2026-01-19T19:16:04.51+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2026-23842 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.49%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Chatterbot	Chatterbot	< 1.2.11

References

https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cfPatch
https://github.com/gunthercox/ChatterBot/pull/2432Issue Tracking
https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11Product, Release Notes
https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72Exploit, Vendor Advisory
https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090fExploit

Timeline

Published: Jan 19, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-23842?

How severe is CVE-2026-23842?

CVE-2026-23842 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2026-23842?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-23842?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST