CVE-2026-53716

Envoy Gateway (open-source application gateway managing Envoy Proxy) has an unbounded gzip decompression vulnerability in getFileFromGZ within internal/wasm/httpfetcher.go. The function calls io.ReadAll on a gzip.Reader without limiting the decompressed output size. When a tenant-controlled Envoy...

CVE-2026-53716 Envoy Gateway: Wasm HTTP fetch decompresses gzip without output-size limit

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, getFileFromGZ in internal/wasm/httpfetcher.go calls io.ReadAll on a gzip.Reader without limiting decompressed output when a tenant-controlled...

Envoy Gateway: Wasm HTTP fetch decompresses gzip without output-size limit

Vulnerability report without repro case. Repro case may be added later after harness is complete. Preconditions 4: - Tenant can create EnvoyExtensionPolicy baseline - Attacker hosts a gzip-bomb at a reachable URL - sha256 unset optional field; check is post-decompression anyway - No operator...