CVE-2026-59890

Summary

setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0.

Affected Software

VendorProductVersion RangeStatus
pypasetuptools< 83.0.0affected

Weaknesses

  • CWE-176: CWE-176: Improper Handling of Unicode Encoding
  • CWE-697: CWE-697: Incorrect Comparison

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

Additional References

References