Improper Handling of Unicode Encoding Affecting setuptools package, versions [,83.0.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-PYTHON-SETUPTOOLS-17895075
- published8 Jul 2026
- disclosed8 Jul 2026
- credittomasilluminati
Introduced: 8 Jul 2026
NewCVE-2026-59890 (opens in a new tab)How to fix?
Upgrade setuptools to version 83.0.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Handling of Unicode Encoding in the process that applies exclusion directives from MANIFEST.in due to improper Unicode normalization handling on macOS APFS or HFS+ filesystems. An attacker can cause unintended files to be included in a source distribution by creating filenames that exploit normalization collisions.