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PYSEC-2026-3609 PyMdown Extensions: Path traversal in the b64 extension lets <img src> read files outside base_path

🗓️ 04 Aug 2026 11:34:42Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

Pymdown Extensions b64 path traversal reads files outside base_path and embeds their base64 data.

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04 Aug 2026 14:30Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.3
3