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PYSEC-2026-3618 Thumbor has path traversal via post-validation URL decoding bypass in file_loader

🗓️ 04 Aug 2026 11:34:46Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

Thumbor file_loader allows path traversal by decoding paths after abspath startswith check.

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04 Aug 2026 14:30Current
5.5Medium risk
Vulners AI Score5.5
CVSS 48.7
EPSS0.00357
5