CVE-2026-12003

To allow builds of Python to be run from an in-tree layout rather than an installed file layout, the VPATH variable is defined at build time and used to locate certain landmarks - specifically, Modules/setup.local. When this landmark is found relative to VPATH relative to the executable, Python...

CVE-2026-12003 CPython >3.11 Insecure Input Validation resulting in privilege escalation

To allow builds of Python to be run from an in-tree layout rather than an installed file layout, the VPATH variable is defined at build time and used to locate certain landmarks - specifically, Modules/setup.local. When this landmark is found relative to VPATH relative to the executable, Python...

CVE-2026-12003

Technical details are not publicly available in the provided documents. Monitor for updates.

PSF-2026-28

To allow builds of Python to be run from an in-tree layout rather than an installed file layout, the VPATH variable is defined at build time and used to locate certain landmarks - specifically, Modules/setup.local. When this landmark is found relative to VPATH relative to the executable, Python...

EUVD-2026-37125

To allow builds of Python to be run from an in-tree layout rather than an installed file layout, the VPATH variable is defined at build time and used to locate certain landmarks - specifically, Modules/setup.local. When this landmark is found relative to VPATH relative to the executable, Python...

PT-2026-49724

Name of the Vulnerable Software and Affected Versions Python affected versions not specified Description On Windows, Python uses the VPATH variable to locate landmarks, such as 'Modules/setup.local', to determine if it is running in a source tree and adjust the default sys.path. In certain...

July 31, 2017—KB4032188 (OS Build 15063.502)

July 31, 2017—KB4032188 OS Build 15063.502 Improvements and fixes This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include: Addressed issue that causes a Microsoft Installer MSI application to fail for standard non-admin...