Microsoft Azure Update
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Update Summary
Public Preview: Azure Front Door mutual TLS enables client certificate authentication before requests reach an application. It supports four validation modes and forwards certificates to origins via the `X-Azure-ClientCertificate` header.
Update Details
Security
- Adds mutual TLS (client certificate authentication) to help protect sensitive applications and APIs.
- Supports certificate validation at the edge for stronger client authentication.
- Allows trusted public and private certificate authorities for client certificate validation.
New Features
- Introduces mutual TLS for Azure Front Door custom domains.
- Provides four client certificate validation modes:
Require and validate,Require without validation,Validate when presented, andPass through to the origin.
Hints
- Upload the trusted certificate authority chain to Azure Key Vault and associate it with a Front Door custom domain.
- When configured to forward certificates, Azure Front Door uses the
X-Azure-ClientCertificaterequest header.
Product Information
Vendor: Microsoft
Product: Azure
Product type: Other
Platform: Web
Vendor release date: Aug 1, 2026
Original release notes: View on vendor site
Published on updatealert.io: Aug 16, 2026