8.3
High
CVE-2026-109956 NLTK through 3.10.3 contains a path traversal vulnerability in WekaClassifier that allows attackers to bypass…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| nltk 3.10 | earliest → 3.10.3 | No fix stated |
References
Timeline
- Published
- Last modified
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