CVE-2026-53716Medium· 6.5▾ SunlitEnvoy 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 l…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.7%
Last analysed / modified upstream
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 EnvoyExtensionPolicy.spec.wasm[].code.http.url points to a reachable compressed Wasm payload. The 256 MiB compressed-input cap does not constrain the expanded size, no operator Wasm URL allowlist exists, and the optional sha256 check occurs only after decompression, so a comparatively small gzip stream can force a multi-gigabyte allocation in the shared controller. The resulting out-of-memory termination restarts the controller, re-reconciles the persistent custom resource, and can create a persistent cross-tenant control-plane outage. This issue is fixed in versions 1.7.4 and 1.8.1.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/envoyproxy/gateway >= 1.8.0-rc.0, < 1.8.1github.com/envoyproxy/gateway < 1.7.4Patched in:
github.com/envoyproxy/gateway 1.8.1github.com/envoyproxy/gateway 1.7.4Connected by shared product, vendor, weakness, or advisory.
CVE-2026-53717Medium· 6.5Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
CVE-2026-53718Medium· 6.4Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
CVE-2026-53719Medium· 6.5Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
CVE-2026-53715Medium· 5.3Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
CVE-2026-53713Critical· 9.1Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
CVE-2026-53714High· 7.4Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway