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GHSA-QGVM-J2HM-6M38 Flowise: Unauthenticated OAuth2 token refresh endpoint returns access tokens — enables token theft for any connected service

🗓️ 04 Aug 2026 19:37:36Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 8 Views

Unauthenticated OAuth two token refresh leaks access tokens, enabling theft of connected services.

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04 Aug 2026 19:45Current
5.5Medium risk
Vulners AI Score5.5
CVSS 49.2
EPSS0.00381
8