{"cve":"CVE-2026-53713","nvd":{"published":"2026-09-14T21:17:12.520","modified":"2026-09-30T17:43:24.057","status":"Awaiting Analysis","description":"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, to_absolute_normalized_path in internal/gatewayapi/luavalidator/security.lua does not collapse redundant separators before is_critical_path evaluates Lua submitted through EnvoyExtensionPolicy during default Strict validation. Linux resolves a double-slash absolute path as the corresponding single-slash path, but the validator does not match the redundant-separator form, allowing submitted Lua to read arbitrary files from the gateway controller pod. Exposed files can include Kubernetes service-account tokens, TLS certificates, and process environment data, and the disclosed credentials can provide access to sensitive Kubernetes API Server or Gateway xDS server information. This issue is fixed in versions 1.7.4 and 1.8.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L","score":9.1},"cwes":["CWE-20"],"references":["https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464","https://github.com/envoyproxy/gateway/commit/96e2b750868a459ace4b8b68e6a6e4fb0152b9b7","https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eead","https://github.com/envoyproxy/gateway/pull/9171","https://github.com/envoyproxy/gateway/pull/9172"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-53713","score":0.00433,"percentile":0.37299,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-wcrf-9vrr-854f","url":"https://osv.dev/vulnerability/GHSA-wcrf-9vrr-854f","summary":"Envoy Gateway: Authentication Bypass via Improper Input Validation in EnvoyExtensionPolicy Lua Allows Secret Disclosure","modified":"2026-09-21T09:40:42.754077590Z","packages":[{"ecosystem":"Go","name":"github.com/envoyproxy/gateway","purl":"pkg:golang/github.com/envoyproxy/gateway","ranges":[">=1.8.0-rc.0 <1.8.1"],"fixed":["1.8.1"]},{"ecosystem":"Go","name":"github.com/envoyproxy/gateway","purl":"pkg:golang/github.com/envoyproxy/gateway","ranges":["<1.7.4"],"fixed":["1.7.4"]}]},{"id":"GO-2026-6011","url":"https://osv.dev/vulnerability/GO-2026-6011","summary":"Envoy Gateway: Authentication Bypass via Improper Input Validation in EnvoyExtensionPolicy Lua Allows Secret Disclosure in github.com/envoyproxy/gateway","modified":"2026-09-21T09:40:42.754077590Z","packages":[{"ecosystem":"Go","name":"github.com/envoyproxy/gateway","purl":"pkg:golang/github.com/envoyproxy/gateway","ranges":["<1.7.4",">=1.8.0-rc.0 <1.8.1"],"fixed":["1.7.4","1.8.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}