{"id":"CVE-2026-53715","summary":"Envoy Gateway: Wasm cache ServeHTTP reads mappingPath2Cache without lock","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.","aliases":["GHSA-8fv2-88gg-hm7q","GO-2026-6005"],"modified":"2026-09-16T03:46:26.193794827Z","published":"2026-09-14T20:14:34.223Z","related":["openSUSE-SU-2026:21483-1"],"database_specific":{"cwe_ids":["CWE-362"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53715.json","cna_assigner":"GitHub_M"},"references":[{"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":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53715.json"},{"type":"ADVISORY","url":"https://github.com/envoyproxy/gateway/security/advisories/GHSA-8fv2-88gg-hm7q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53715"},{"type":"FIX","url":"https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464"},{"type":"FIX","url":"https://github.com/envoyproxy/gateway/commit/96e2b750868a459ace4b8b68e6a6e4fb0152b9b7"},{"type":"FIX","url":"https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eead"},{"type":"FIX","url":"https://github.com/envoyproxy/gateway/pull/9171"},{"type":"FIX","url":"https://github.com/envoyproxy/gateway/pull/9172"},{"type":"FIX","url":"https://github.com/envoyproxy/gateway/pull/9173"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/envoyproxy/gateway","events":[{"introduced":"0"},{"introduced":"2de2611fdbbca83d4a1ede99417c90fcdead24d9"},{"fixed":"062b176235b72d339fac340d23dd37679b36dca6"},{"fixed":"097ab899b9d041452d02f15d738514eda10ea21b"},{"fixed":"5a78db82b7cf4fc5bebbeda2c50952892038a464"},{"fixed":"96e2b750868a459ace4b8b68e6a6e4fb0152b9b7"},{"fixed":"b4737180c7e597490c6363075c565fa8cf24eead"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"1.7.4"},{"introduced":"1.8.0-rc.0"},{"fixed":"1.8.1"}]}}],"versions":["v1.8.0","v1.7.3","v1.8.0-rc.1","v1.9.0-rc.0","v1.7.2","v1.7.1","v1.8.0-rc.0","v1.7.0","v1.7.0-rc.2","v1.7.0-rc.1","v1.7.0-rc.0","v1.6.0-rc.0","latest","v0.5.0-rc.1","v0.2.0","v0.2.0-rc2","v0.2.0-rc1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53715.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}