PyPI/nltk CVE-2026-79674: high, EPSS 0.39%

NLTK: Corpus Reader Sandbox Bypass

Action: Upgrade nltk to 3.10.3 or later.

pip install nltk==3.10.3

Affected

Fixed versions

Sources

• osv: 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
• 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

CVE-2026-79674 · published 2026-09-08T16:57:08Z · modified 2026-09-08T17:15:03.431037417Z · JSON