envoyproxy/envoy

SPIFFE validator + "mtls_authenticated" do not support session resumption

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#42.668 geöffnet am 17. Dez. 2025

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Beschreibung

On a resumed session, "peer certificate validated" is set to false since that bit is cert by the validator flow per connection. That means any policy using mtls_authenticated evaluates to false, and can be dangerous if used as a DENY policy. The workaround is to disable session resumption in TLS.

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