Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| nltk / nltk/nltk | affected unspecified through latest |
CWE
CWE-22
References
ADP enrichment
No English description supplied.
No references supplied.
A flaw was found in NLTK (Natural Language Toolkit). This vulnerability allows a remote attacker to read arbitrary files on the server due to improper sanitization of file paths in several CorpusReader classes, including WordListCorpusReader, TaggedCorpusReader, and BracketParseCorpusReader. By exploiting this path traversal vulnerability, an attacker can gain unauthorized access to sensitive information, such as system files, SSH private keys, and API tokens. In certain scenarios, this could potentially lead to remote code execution.