CVE-2026-23842

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Source
https://cve.org/CVERecord?id=CVE-2026-23842
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23842.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23842
Aliases
Published
2026-01-19T18:39:37Z
Modified
2026-10-21T02:30:31Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
ChatterBot has Denial of Service via Database Connection Pool Exhaustion
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23842.json"
}
References

Affected packages

Git / github.com/gunthercox/chatterbot

Affected ranges

Type
GIT
Repo
https://github.com/gunthercox/chatterbot
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
97181bde5546d112ef95eafda390aada68251d87
Fixed
de89fe648139f8eeacc998ad4524fab291a378cf
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:chatterbot:chatterbot:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.2.11"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "de89fe648139f8eeacc998ad4524fab291a378cf"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "1.2.11",
            "range":  [
                {
                    "fixed":  "97181bde5546d112ef95eafda390aada68251d87"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.0.0
0.0.1
0.0.2
0.0.3
0.0.4
0.0.5
0.1.0
0.1.1
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.3.6
0.3.7
0.4.0
0.4.1
0.4.10
0.4.11
0.4.12
0.4.13
0.4.14
0.4.2
0.4.3
0.4.4
0.4.5
0.4.6
0.4.7
0.4.8
0.4.9
0.5.0
0.5.1
0.5.2
0.5.3
0.5.4
0.5.5
0.6.0
0.6.1
0.6.2
0.6.3
0.7.0
0.7.1
0.7.2
0.7.3
0.7.4
0.7.5
0.7.6
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.8.6
0.8.7
1.*
1.0.0
1.0.0a1
1.0.0a2
1.0.0a3
1.0.0a4
1.0.1
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.1.0a1
1.1.0a2
1.1.0a3
1.1.0a4
1.1.0a5
1.1.0a6
1.1.0a7
1.2.0
1.2.1
1.2.10
1.2.2
1.2.3
1.2.4
1.2.5
1.2.6
1.2.7
1.2.8
1.2.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23842.json"