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CVE-2026-54567 Flask-Reuploaded: Extension-denylist bypass via case-folding asymmetry in name-override path (incomplete-fix variant of CVE-2026-27641)

🗓️ 14 Sep 2026 17:15:49Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

Denylist bypass in Flask-Reuploaded 1.5.0-1.6.0 via mixed-case extension in name override.

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17 Sep 2026 03:31Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
5