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CVE-2026-34577 Postiz: Unauthenticated Full-Read SSRF via /public/stream Endpoint with Trivially Bypassable Extension Check

🗓️ 02 Apr 2026 17:24:33Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Unauthenticated SSRF in Postiz via /public/stream before 2.21.3; only mp4 check. Fixed in 2.21.3.

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08 Jul 2026 08:12Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.6
EPSS0.00474
2