[oss-security][CVE-2026-8643] pip can extract console_scripts and gui_scripts outside installation directory

[Alan Coopersmith <alan.coopersmith () oracle com>]

https://www.cve.org/CVERecord?id=CVE-2026-8643 currently lists
the affected versions as "affected from 0 before 26.1.2".


-------- Forwarded Message --------
Subject: 	[Security-announce][CVE-2026-8643] pip can extract console_scripts and 
gui_scripts outside installation directory
Date:   Mon, 1 Jun 2026 15:03:45 +0000
From:   Seth Larson <seth () python org>
Reply-To:       security-sig () python org
To:     security-announce () python org



There is a MEDIUM severity vulnerability affecting pip.

pip would treat console_scripts and gui_scripts as paths instead of file names 
without sanitizing the resolved absolute path to the installation directory, 
leading to entry points being installed outside the installation directory.

Please see the linked CVE ID for the latest information on affected versions:

* https://www.cve.org/CVERecord?id=CVE-2026-8643
* https://github.com/pypa/pip/pull/14000

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