Advisories

NLTK 3.9.4 before 3.10.4 Symlink Sandbox Escape via chat80.sql_query

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Severity
medium
Date
Affecting
  • nltk >= 3.9.4, < 3.10.4

CWE
  • CWE-59 Improper Link Resolution Before File Access ('Link Following')
CVSS
4.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
manus-pi, manus-use
Description
NLTK from 3.9.4 before 3.10.4 contains a symlink following vulnerability in nltk.sem.chat80.sql_query() that bypasses the pathsec data-root sandbox containment check. Attackers who can write into a trusted NLTK data root can plant a symbolic link to read SQLite databases outside the sandbox.

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