{"affected":[{"package":{"ecosystem":"Bitnami","name":"envoy-gateway","purl":"pkg:bitnami/envoy-gateway"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"1.7.4"},{"introduced":"1.8.0"},{"fixed":"1.8.1"}],"type":"SEMVER"}],"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"}]}],"aliases":["CVE-2026-53715"],"database_specific":{"cpes":["cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:go:*:*"],"severity":"Medium"},"details":"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, HTTPServer.ServeHTTP in internal/wasm/httpserver.go reads the plain mappingPath2Cache map without synchronization while HTTPServer.Get writes the same map during EnvoyExtensionPolicy translation. An attacker with pod-network access to unauthenticated port 18002 and tenant permission to churn policies with distinct Wasm URLs can flood GET requests until a per-request reader overlaps a writer. Go's concurrent map read and write detection invokes runtime.throw, which the net/http connection recovery cannot catch, terminating the controller process and causing a timing-dependent, cross-tenant control-plane denial of service until Kubernetes restarts the pod. This issue is fixed in versions 1.7.4 and 1.8.1.","id":"BIT-envoy-gateway-2026-53715","modified":"2026-09-21T09:26:48.669Z","published":"2026-09-21T08:54:56.276Z","references":[{"type":"WEB","url":"https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/commit/96e2b750868a459ace4b8b68e6a6e4fb0152b9b7"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eead"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/pull/9171"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/pull/9172"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/pull/9173"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/releases/tag/v1.7.4"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/releases/tag/v1.8.1"},{"type":"WEB","url":"https://github.com/envoyproxy/gateway/security/advisories/GHSA-8fv2-88gg-hm7q"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53715"}],"schema_version":"1.6.2","summary":"Envoy Gateway: Wasm cache ServeHTTP reads mappingPath2Cache without lock"}