HIGH 8.2 NVD
CVE-2026-79676
NLTK versions before 3.10.3 contain a path traversal vulnerability in corpus readers that reopen root-derived paths using built-in open() instead of nltk.pathse
NLTK versions before 3.10.3 contain a path traversal vulnerability in corpus readers that reopen root-derived paths using built-in open() instead of nltk.pathsec.open(), allowing symlinks to escape trusted roots. Attackers who stage symlinked corpus files under a trusted data root can disclose outside-root content through normal corpus reader methods like channels(), domains(), and synonyms().
References
- https://github.com/nltk/nltk/security/advisories/GHSA-p4rw-rvv2-7xwr
- https://www.vulncheck.com/advisories/nltk-before-path-traversal-via-symlink-bypass
This high severity vulnerability with a CVSS score of 8.2 was published on 2026-08-25 via NVD.
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