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I. Basic Information for CVE-2026-6357
Vulnerability Information

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Vulnerability Title
pip self-update functionality can import newly installed modules after wheel installation
Source: NVD (National Vulnerability Database)
Vulnerability Description
pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
pip 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pip是Python Packaging Authority开源的一个Python包安装程序。 pip 26.1之前版本存在安全漏洞,该漏洞源于自更新检查功能在安装wheel文件后运行,可能导致导入已知Python模块。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
Pip maintainerspip 0 ~ 26.1 -
II. Public POCs for CVE-2026-6357
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III. Intelligence Information for CVE-2026-6357
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IV. Related Vulnerabilities
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