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HIGH 8.1

PYSEC-2026-2237

상세

NLTK (Natural Language Toolkit) is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. In versions 3.9.3 and prior, the NLTK downloader does not validate the `subdir` and `id` attributes when processing remote XML index files. Attackers can control a remote XML index server to provide malicious values containing path traversal sequences (such as `../`), which can lead to arbitrary directory creation, arbitrary file creation, and arbitrary file overwrite. Commit 89fe2ec2c6bae6e2e7a46dad65cc34231976ed8a patches the issue.

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영향 패키지

PyPI / nltk
최초 영향 버전: 0 수정 버전: 3.9.4
수정 pip install --upgrade 'nltk>=3.9.4'

참고