CVE-2026-0847— NLTK 路径遍历漏洞

Path Traversal in nltk/nltk

A vulnerability in NLTK versions up to and including 3.9.2 allows arbitrary file read via path traversal in multiple CorpusReader classes, including WordListCorpusReader, TaggedCorpusReader, and BracketParseCorpusReader. These classes fail to properly sanitize or validate file paths, enabling attackers to traverse directories and access sensitive files on the server. This issue is particularly critical in scenarios where user-controlled file inputs are processed, such as in machine learning APIs, chatbots, or NLP pipelines. Exploitation of this vulnerability can lead to unauthorized access to sensitive files, including system files, SSH private keys, and API tokens, and may potentially escalate to remote code execution when combined with other vulnerabilities.

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对路径名的限制不恰当(路径遍历)

NLTK 路径遍历漏洞

NLTK是NLTK开源的一个自然语言工具包。用于支持自然语言处理的研究和开发。 NLTK 3.9.2及之前版本存在路径遍历漏洞，该漏洞源于多个CorpusReader类未正确清理或验证文件路径，可能导致任意文件读取。

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