CVSS 4.0
8.8 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-79674
High (8.8) in nltk nltk. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in nltk 3.10.3.
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.
Severity
CVSS 3.1
8.2 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
- CWE
- CWE-73
- Published
- Modified
- Record from
- the NVD, synced
Affected
- nltk:nltk
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3gq4-3j92-5w49 | PyPI | nltk | <3.10.3 | 3.10.3 |
| PYSEC-2026-3736 | PyPI | nltk | <3.10.3 | 3.10.3 |