CVE-2025-14009

描述

A critical vulnerability exists in the NLTK downloader component of nltk/nltk, affecting all versions. The _unzip_iter function in nltk/downloader.py uses zipfile.extractall() without performing path validation or security checks. This allows attackers to craft malicious zip packages that, when downloaded and extracted by NLTK, can execute arbitrary code. The vulnerability arises because NLTK assumes all downloaded packages are trusted and extracts them without validation. If a malicious package contains Python files, such as __init__.py, these files are executed automatically upon import, leading to remote code execution. This issue can result in full system compromise, including file system access, network access, and potential persistence mechanisms.

如何修補 CVE-2025-14009

要修補 CVE-2025-14009,請將受影響套件升級到下列已修補版本。

• —未列出修補版本
• —升級至 3.9.3 或更新版本
• —升級至 3.9.3 或更新版本

CVE-2025-14009 正在被利用嗎?

低 — EPSS 為 0.8%,目前沒有觀察到大規模利用活動。

受影響套件(3)

• from 0
• from 0, < 3.9.3
• from 0, < 3.9.3

CVSS 分數

參考連結(9)

• ADVISORYgithub.com/advisories/GHSA-7p94-766c-hgjp
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-14009
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2025-14009
• PATCHgithub.com/nltk/nltk
• WEB