Urgent: CVE-2025–47273 Exposes Python SetupTools — Here’s How to Stay Secure
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Summary
A recent article has warned about a vulnerability in the Python SetupTools library, which is a crucial element in creating and distributing Python projects.
CVE-2025-47273, known as Improper Limitation of a Pathname to a Restricted Directory, enables an attacker to save files anywhere on the system using the same access level as the Python program, which may even allow them to run malicious code remotely.
The vulnerability is due to the use of old versions of SetupTools in the official Docker image, with the recommended version being 78.1.1.
There are two solutions mentioned in the article: upgrading the base repository versions, or using a clean Docker image with the upgraded version.
Using the author’s newly forked repository on GitHub and applying the relevant command to generate a new Docker file image based on the new Setup Tools version is the first approach.
The second approach involves accessing the author’s DockerHub repository and changing the base image to a new image with the desired version.