CVSS 4.0
7.7 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:PCVE-2025-47273
High (7.7). EPSS 1.6% chance of exploitation in the next 30 days. Fixed in setuptools 78.1.1.
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.
Severity
CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- EPSS
- 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- python:setuptools
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5rjg-fvgr-3xxf | PyPI | setuptools | <78.1.1 | 78.1.1 |
| PYSEC-2025-49 | PyPI | setuptools | <78.1.1 | 78.1.1 |
References
- https://github.com/pypa/setuptools/blob/6ead555c5fb29bc57fe6105b1bffc163f56fd558/setuptools/package_index.py#L810C1-L825C88
- https://github.com/pypa/setuptools/commit/250a6d17978f9f6ac3ac887091f2d32886fbbb0b
- https://github.com/pypa/setuptools/issues/4946
- https://github.com/pypa/setuptools/security/advisories/GHSA-5rjg-fvgr-3xxf
- https://lists.debian.org/debian-lts-announce/2025/05/msg00035.html