CVE-2026-23842
ChatterBot has Denial of Service via Database Connection Pool Exhaustion
HIGH 7.5EPSS 0.5%
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
- gunthercox · ChatterBot
- CVSS v3.1 GITHUB
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.54% chance of exploitation in the next 30 days, 44th percentile
- Published
- 2026-01-19
- Updated
- 2026-01-20
Proof-of-concept exploits (2)
- advisories/GHSA-v4w8-49pv-mf72
- AdityaBhatt3010/CVE-2026-23842-Denial-of-Service-via-Database-Connection-Pool-Exhaustion-…2★ · 2026-03-01