NLTK through 3.10.3 contains a path traversal vulnerability in WekaClassifier that allows attackers to bypass nltk.pathsec containment by supplying unvalidated model paths. Attackers controlling the model_filename or model argument can make the weka JVM write files via -d or probe files via -l outside allowed data roots.
Metrics
Affected Vendors & Products
References
History
Mon, 26 Oct 2026 20:30:00 +0000
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ssvc
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Wed, 14 Oct 2026 00:30:00 +0000
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threat_severity
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threat_severity
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Tue, 13 Oct 2026 13:45:00 +0000
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| Description | NLTK through 3.10.3 contains a path traversal vulnerability in WekaClassifier that allows attackers to bypass nltk.pathsec containment by supplying unvalidated model paths. Attackers controlling the model_filename or model argument can make the weka JVM write files via -d or probe files via -l outside allowed data roots. | |
| Title | NLTK through 3.10.3 Path Traversal via WekaClassifier Model Path | |
| First Time appeared |
Nltk
Nltk nltk |
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| Weaknesses | CWE-22 | |
| CPEs | cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Nltk
Nltk nltk |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-13T13:27:20.244Z
Updated: 2026-10-26T19:46:30.241Z
Reserved: 2026-10-13T11:25:25.214Z
Link: CVE-2026-109956
Updated: 2026-10-26T19:46:06.747Z
Status : Awaiting Analysis
Published: 2026-10-13T14:17:34.520
Modified: 2026-10-26T20:17:47.480
Link: CVE-2026-109956