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BIT-ENVOY-2026-26308 Envoy has an RBAC Header Validation Bypass via Multi-Value Header Concatenation

🗓️ 12 Mar 2026 08:39:41Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

Envoy RBAC header validation bypassed by multi-value headers, allowing Deny rule bypass before fixes.

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13 Mar 2026 20:26Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5 - 8.2
EPSS0.00293
SSVC
3