CVE-2026-62385: Nltk

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit frame_by_name, doc, lu, and header methods with crafted parameters to read arbitrary XML files accessible to the application.

Affected products

• Nltk Nltk: before 3.10.0 (fixed in 3.10.0)

Published 2026-08-22. Last modified 2026-08-31.