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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-62384

NLTK FramenetCorpusReader Symlink Sandbox Bypass before 3.10.2

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nltk nltk

Default version status: unaffected

  • 3.10.0 to < 3.10.2affected
  • 3.10.2unaffected
pkg:pypi/nltk

References