PDM wheel installation leads to Path Traversal via overridden write_to_fs

InstallDestination.writetofs in src/pdm/installers/installers.py overrides the base class to add symlink/hardlink support but replaces the safe pathwithdestdir which validates via Path.resolve + isrelativeto with a bare os.path.join that performs no path validation. A malicious wheel with travers...

uv is vulnerable to arbitrary file write through entry point names

Impact In versions of uv prior to 0.11.15, when installing a distribution containing an entry point specification under consolescripts or guiscripts, uv would place the generated entry point according to the given name even if doing so resulted in a path outside of the environment's scripts...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the wheel installation process. An attacker can overwrite arbitrary files within the installing user's permissions by convincing a user to install a specially crafted Python wheel containing malicious entry-point...

Amazon Linux 2 : python-pip, --advisory ALAS2-2026-3317 (ALAS-2026-3317)

It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3317 advisory. 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 ...

Amazon Linux 2023 : python3.13-pip, python3.13-pip-wheel (ALAS2023-2026-1654)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1654 advisory. 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 deferr...

Amazon Linux 2023 : python3.14-pip, python3.14-pip-wheel (ALAS2023-2026-1653)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1653 advisory. 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 deferr...

pip self-update functionality can import newly installed modules after wheel installation

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SUSE CVE-2026-6357

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...

Linux Distros Unpatched Vulnerability : CVE-2026-6357

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

pip Vulnerable to Inclusion of Functionality from Untrusted Control Sphere

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...

CVE-2026-6357 pip self-update functionality can import newly installed modules after wheel installation

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...

EUVD-2026-25857

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...

CVE-2026-6357 pip self-update functionality can import newly installed modules after wheel installation

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...

CVE-2026-6357

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...

CVE-2026-6357

CVE-2026-6357 affects pip prior to 26.1, where a self-update check would run after wheel installation and could import recently installed Python modules. The root cause is that imports of certain well-known module names were deferred to speed up CLI startup, allowing a wheel install to trigger im...

PT-2026-35435

Name of the Vulnerable Software and Affected Versions pip versions prior to 26.1 Description The self-update check functionality runs after installing wheel files, which requires importing well-known Python module names. These imports were deferred to improve the startup time of the pip CLI. This...

pip 安全漏洞

pip is a Python package installer developed by the Python Packaging Authority. Versions of pip prior to 26.1 contained security vulnerabilities. These vulnerabilities stemmed from the self-update check feature, which ran after the installation of wheel files, potentially leading to the import of...

PT-2026-29665

Name of the Vulnerable Software and Affected Versions Poetry versions 1.4.0 through 2.3.2 Description Poetry, a Python dependency manager, contains a path traversal flaw. A crafted wheel file can include '..' paths that Poetry writes to disk without proper containment checks. This allows for...

AZL-77910 CVE-2026-1703 affecting package python-virtualenv 20.36.1-1

When pip is installing and extracting a maliciously crafted wheel archive, files may be extracted outside the installation directory. The path traversal is limited to prefixes of the installation directory, thus isn't able to inject or overwrite executable files in typical situations...

CVE-2026-1703 Limited path traversal when installing wheel archives

When pip is installing and extracting a maliciously crafted wheel archive, files may be extracted outside the installation directory. The path traversal is limited to prefixes of the installation directory, thus isn't able to inject or overwrite executable files in typical situations...