high8.2
CVE-2026-79674
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 …
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | nltk | <= 3.10.2 | 3.10.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nltk | Nltk | before 3.10.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-3gq4-3j92-5w49
- https://github.com/nltk/nltk/security/advisories/GHSA-3gq4-3j92-5w49
- https://nvd.nist.gov/vuln/detail/CVE-2026-79674
- https://github.com/nltk/nltk/commit/bc007200d123c1a98d74c2eb230f5e06c53886b8
- https://github.com/nltk/nltk/releases/tag/v3.10.3
- https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2026-3736.yaml
- https://www.vulncheck.com/advisories/nltk-path-traversal-via-corpus-reader-constructors