CVE-2026-79676NLTK before 3.10.3 Path Traversal via Symlink Bypass

Descripción

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().

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• GitHub Security Advisory (GHSA-p4rw-rvv2-7xwr) vendor-advisoryExploitVendor Advisory
• VulnCheck Advisory: NLTK before 3.10.3 Path Traversal via Symlink Bypass third-party-advisoryThird Party Advisory