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fix(security): patch CVE-2025-14009 (nltk) — 1.x / v1.2.0 line#1

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fix(security): patch CVE-2025-14009 (nltk) — 1.x / v1.2.0 line#1
joerattazzi-microsoft wants to merge 1 commit intomainfrom
security/nltk-cve-2025-14009-1.x

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Security Patch: CVE-2025-14009

Vulnerability: CVE-2025-14009 — path traversal and arbitrary ZIP extraction in nltk.downloader

Affected version: nltk 3.9.1 (pinned in this codebase)

Fix: Bump nltk minimum version to 3.9.3 which includes:

  • Secure ZIP extraction in nltk.downloader (#3468)
  • Block path traversal/arbitrary reads in nltk.data for protocol-less refs (#3467)
  • Block path traversal/abs paths in corpus readers and FS pointers (#3479, #3480)
  • Validate external StanfordSegmenter JARs using SHA256 (#3477)

References:

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