CVE-2026-62384

NLTK (Python Natural Language Toolkit) versions before 3.10.2 contain a symlink-based sandbox bypass in FramenetCorpusReader . An attacker who can place symlinks with names containing no path separators inside a corpus subdirectory can bypass the path validation guard and read arbitrary XML files...

EUVD-2026-64338

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 validatio...

EUVD-2026-64337

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 framebyname, doc, lu, and header methods wi...