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PYSEC-2026-3466 Flask-Reuploaded: Extension-denylist bypass via case-folding asymmetry in name-override path (incomplete-fix variant of CVE-2026-27641)

🗓️ 23 Jul 2026 11:41:47Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

Flask-Reuploaded bypasses extension denylist via case folding in name override path; incomplete fix.

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23 Jul 2026 15:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
3