CVE-2026-126296NLTK before 3.10.4 Path Traversal via save_maxent_params and load_maxent_params

Descripción

NLTK before 3.10.4 contains a path traversal vulnerability in save_maxent_params() and load_maxent_params() that bypasses the pathsec filesystem restriction mechanism. Attackers who control the tab_dir argument can read or overwrite model parameter files outside permitted data roots, because the functions call Python's built-in open() directly.

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-59f9-gqg8-mqpj) vendor-advisory
• VulnCheck Advisory: NLTK before 3.10.4 Path Traversal via save_maxent_params and load_maxent_params third-party-advisory