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CVE-2026-23842

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c99e0fef624d024254ce85f01bb580296b707dc0da00760480a6e3e11915bbb3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"ChatterBot","vendor":"gunthercox","versions":[{"status":"affected","version":"< 1.2.11"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf","tags":["x_refsource_MISC"],"url":"https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/references/2
{"name":"https://github.com/gunthercox/ChatterBot/pull/2432","tags":["x_refsource_MISC"],"url":"https://github.com/gunthercox/ChatterBot/pull/2432"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/references/1
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/references/3
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/references/0
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7dee1782f0438007929b30f0278f1bd47fd2018ac6e9f931c906378a91c6bf18 · sha256:80ab62c870f31b08… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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