Vulnerability Details CVE-2026-62384
NLTK versions before 3.10.2 contain a symlink-based sandbox bypass in FramenetCorpusReader that allows attackers to read arbitrary XML files outside the corpus root. Attackers can place symlinks with names containing no path separators inside the corpus subdirectory, which pass the path validation guard and are resolved to files outside the intended corpus root when accessed via frame_by_name(), _lu_file(), or doc() methods.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 40.1%
CVSS Severity
CVSS v3 Score 7.5
References