{"action":"Upgrade github.com/envoyproxy/gateway to 1.7.4 or later.","affected":[{"fixed":"1.7.4","introduced":"0"},{"fixed":"1.8.1","introduced":"1.8.0-rc.0"}],"component":"github.com/envoyproxy/gateway","cve_ids":["CVE-2026-53718"],"ecosystem":"Go","epss":0.00413,"exploited":false,"fixed_versions":["1.7.4","1.8.1"],"ghsa_id":"GHSA-fcrp-7gc2-93g7","id":"tcs_01M5KGR8EHEAEPCR2J5RJAR8XE","modified_at":"2026-09-21T09:40:46.638359063Z","published_at":"2026-07-17T19:42:05Z","references":["https://osv.dev/vulnerability/GO-2026-6007","https://github.com/envoyproxy/gateway/security/advisories/GHSA-fcrp-7gc2-93g7"],"severity":{"label":"medium","score":6.4},"sources":[{"source":"osv","source_id":"GO-2026-6007","url":"https://osv.dev/vulnerability/GO-2026-6007"},{"source":"nvd","source_id":"CVE-2026-53718","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53718"}],"summary":"Envoy Gateway custom backendRef cross-namespace ReferenceGrant bypass in github.com/envoyproxy/gateway"}