CVE-2026-79674
Fixed in a distro release EPSS <1%CVSS 8.2
NLTK versions before 3.10.3 contain a path sandbox bypass vulnerability in corpus-reader constructors that allows attackers to read files outside the intended data root. Attackers can supply arbitrary corpus root paths to LinThesaurusCorpusReader and PanLexLiteCorpusReader constructors to access filesystem content and SQLite databases outside the pathsec sandbox boundary.
Products: nltk
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | nltk | 3.10.3 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | nltk | no fix |
| Debian 13 | nltk | no fix |
| Debian 14 | nltk | 3.10.3-1 |
| Ubuntu Pro 14.04 LTS | nltk | no fix |
| Ubuntu Pro 16.04 LTS | nltk | no fix |
| Ubuntu Pro 18.04 LTS | nltk | no fix |
| Ubuntu Pro 20.04 LTS | nltk | no fix |
| Ubuntu Pro 22.04 LTS | nltk | no fix |
| Ubuntu Pro 24.04 LTS | nltk | no fix |
| Ubuntu Pro 26.04 LTS | nltk | no fix |