{"id":"CVE-2026-23842","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-23842","generatedAt":"2026-10-28T08:28:02.031Z","title":"ChatterBot versions up to 1.2.10 are vulnerable to a denial-of-service condition caused by improper database session and connection pool management.","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.","published":"2026-01-19T19:16:05.000Z","lastModified":"2026-06-17T10:22:11.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400"],"affected":["chatterbot/chatterbot"],"epss":{"score":0.00541,"percentile":0.45302,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/gunthercox/ChatterBot/pull/2432","tags":["Issue Tracking"],"source":"security-advisories@github.com"},{"url":"https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11","tags":["Product","Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72","tags":["Exploit","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f","tags":["Exploit"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23842","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}