CVE-2026-23842

7.5 HIGH
Published: January 19, 2026 Modified: February 05, 2026
View on NVD

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
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
Product Release Notes
https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72
Source: security-advisories@github.com
Exploit Vendor Advisory

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.0%
9th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

chatterbot