Next-Gen WAF agent 4.77.0 | Fastly Documentation

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March 31, 2026

ngwaf-agent changed

Added Envoy External Processing Filter support
Added SSTI attack signal (SSTI), part of Fastly Security Labs
Added insecure deserialization attack signal (INSECURE-DESER), part of Fastly Security Labs
Added NoSQLi attack signal (NOSQLI), part of Fastly Security Labs

Prior change: Next-Gen WAF agent 4.76.0