CVE-2026-8643

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.

What this means for your business

It affects Pypa Pip. It matters if your company, or a supplier that handles your data, runs it.
An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.

What to do

1Check whether your company or your suppliers run Pypa Pip, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Check if you’re exposed Book a call

Scoring

CVSS: 5.5 (v3.1)
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4: 4.1
Weakness: CWE-22
Assigned by: cna@python.org

Dates

Published: 2026-06-01
Last modified: 2026-09-16
Sources: NVD

Affected products

Pypa Pip- 26.1.2

As listed in the NVD configuration data. Not a statement about your estate.