CVE-2025-47273

Description

setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. A path traversal vulnerability in `PackageIndex` is present in setuptools prior to version 78.1.1. An attacker would be allowed to write files to arbitrary locations on the filesystem with the permissions of the process running the Python code, which could escalate to remote code execution depending on the context. Version 78.1.1 fixes the issue.

How to fix CVE-2025-47273

To remediate CVE-2025-47273, upgrade the affected package to a fixed version below.

• —upgrade to 78.1.1 or later
• —upgrade to 52.0.0-4+deb11u2 or later
• —upgrade to 52.0.0-4+deb11u2 or later
• —upgrade to 78.1.1 or later
• —upgrade to 250a6d17978f9f6ac3ac887091f2d32886fbbb0b or later

Is CVE-2025-47273 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (5)

• from 0, < 78.1.1
• from 0, < 52.0.0-4+deb11u2
• from 0, < 52.0.0-4+deb11u2
• from 0, < 78.1.1
• from 0, < 250a6d17978f9f6ac3ac887091f2d32886fbbb0b | from 0, < 78.1.1

CVSS scores

References (9)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-47273
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2025-47273
• PATCHgithub.com/pypa/setuptools
• WEBgithub.com/pypa/advisory-database/tree/main/vulns/setuptools/PYSEC-2025-49.yaml