CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2026-23842
High (7.5) in chatterbot chatterbot. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in chatterbot 1.2.11.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
- CWE
- CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- chatterbot:chatterbot
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-v4w8-49pv-mf72 | PyPI | chatterbot | <1.2.11 | 1.2.11 |
| PYSEC-2026-1244 | PyPI | chatterbot | <1.2.11 | 1.2.11 |
References
- https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf
- https://github.com/gunthercox/ChatterBot/pull/2432
- https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11
- https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72
- https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f