setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+

Summary When building a source distribution python -m build --sdist / setup.py sdist, setuptools' FileList applies MANIFEST.in directives exclude, global-exclude, recursive-exclude, prune by matching a compiled glob against on-disk file names byte-for-byte, with no Unicode normalization. On...

GHSA-H35F-9H28-MQ5C setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+

Summary When building a source distribution python -m build --sdist / setup.py sdist, setuptools' FileList applies MANIFEST.in directives exclude, global-exclude, recursive-exclude, prune by matching a compiled glob against on-disk file names byte-for-byte, with no Unicode normalization. On...

CVE-2026-62230

Grav before 2.0.4 ships a default .htaccess and reference webserver-configs/htaccess.txt whose rules blocking access to sensitive file types .yaml, .php, .json, etc. lack the NC flag, making extension matching case-sensitive. On case-insensitive filesystems Windows/NTFS, macOS/HFS+, or Docker...

CVE-2026-59890

A flaw was found in setuptools, a Python package management tool. The FileList component, responsible for handling file exclusions, did not properly normalize Unicode file names when applying exclusion rules. This oversight could allow a specially crafted file name, using a different Unicode...