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BIT-KEYCLOAK-2026-16093 Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers

🗓️ 31 Aug 2026 14:36:55Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

Bypass of Keycloak signed-JWT assertion policy via unsigned headers allowing weaker auth.

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02 Sep 2026 17:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.4
EPSS0.00304
SSVC
4