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setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+
setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+
Affected packages
- setuptools— before 83.0.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/pypa/setuptools/security/advisories/GHSA-h35f-9h28-mq5c
- https://nvd.nist.gov/vuln/detail/CVE-2026-59890
- https://github.com/pypa/setuptools/commit/dd9f436a36486b4cb8a4c70a2321548b0be09b8f
- https://github.com/pypa/advisory-database/tree/main/vulns/setuptools/PYSEC-2026-3447.yaml
- https://github.com/pypa/setuptools
- https://github.com/pypa/setuptools/releases/tag/v83.0.0
Structured record: https://osv.dev/vulnerability/GHSA-h35f-9h28-mq5c
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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