ChatterBot has Denial of Service via Database Connection Pool Exhaustion
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.5%
exploitation probability
0.5%top 60% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
gunthercox · ChatterBotReferences
https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cfhttps://github.com/gunthercox/ChatterBot/pull/2432https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f