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AI / ML CVE-2026-23842

HIGH
Uncontrolled Resource Consumption (CWE-400)
2026-01-19 security-advisories@github.com GHSA-v4w8-49pv-mf72
Denial Of Service AI / ML Chatterbot
7.5
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Feb 05, 2026 - 18:03 vuln.today
Public exploit code
Patch released
Feb 05, 2026 - 18:03 nvd
Patch available
CVE Published
Jan 19, 2026 - 19:16 nvd
HIGH 7.5

DescriptionGitHub Advisory

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.

AnalysisAI

ChatterBot versions through 1.2.10 suffer from denial-of-service vulnerabilities due to improper connection pool management that allows attackers to exhaust database connections through concurrent requests to the get_response() method, causing persistent service unavailability. Public exploit code exists for this vulnerability, which affects all deployments of the affected ChatterBot versions and requires manual service restart to recover. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send multiple concurrent get_response() requests
Exploit
Exhaust SQLAlchemy connection pool
Execution
Service becomes unavailable
Impact
Manual restart required
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Vulnerability AssessmentAI

Exploitation ChatterBot versions up to 1.2.10 with default connection pool configuration. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.5 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this flaw, persistent service unavailability and requiring a manual res.
Remediation A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 7 days: Identify all affected systems and apply vendor patches promptly. …

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CVE-2026-23842 vulnerability details – vuln.today
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