{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23842", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-16T15:46:40.842Z", "datePublished": "2026-01-19T18:39:37.059Z", "dateUpdated": "2026-01-19T18:39:37.059Z"}, "containers": {"cna": {"title": "ChatterBot has Denial of Service via Database Connection Pool Exhaustion", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72"}, {"name": "https://github.com/gunthercox/ChatterBot/pull/2432", "tags": ["x_refsource_MISC"], "url": "https://github.com/gunthercox/ChatterBot/pull/2432"}, {"name": "https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf", "tags": ["x_refsource_MISC"], "url": "https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf"}, {"name": "https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11", "tags": ["x_refsource_MISC"], "url": "https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11"}, {"name": "https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f", "tags": ["x_refsource_MISC"], "url": "https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f"}], "affected": [{"vendor": "gunthercox", "product": "ChatterBot", "versions": [{"version": "< 1.2.11", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-19T18:39:37.059Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-v4w8-49pv-mf72", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-23842", "lastModified": "2026-01-19T19:16:04.510", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-01-19T19:16:04.510", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf"}, {"source": "security-advisories@github.com", "url": "https://github.com/gunthercox/ChatterBot/pull/2432"}, {"source": "security-advisories@github.com", "url": "https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11"}, {"source": "security-advisories@github.com", "url": "https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72"}, {"source": "security-advisories@github.com", "url": "https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}