{"action":"Upgrade github.com/envoyproxy/gateway to 1.7.4 or later.","affected":[{"fixed":"1.8.1","introduced":"1.8.0-rc.0"},{"fixed":"1.7.4","introduced":"0"}],"component":"github.com/envoyproxy/gateway","cve_ids":["CVE-2026-53718"],"ecosystem":"Go","epss":0.00413,"exploited":false,"fixed_versions":["1.8.1","1.7.4"],"ghsa_id":"GHSA-fcrp-7gc2-93g7","id":"tcs_01M5KF8YK53H35M7ZD79G0EE5N","modified_at":"2026-09-21T09:40:46.638359063Z","published_at":"2026-07-16T19:14:50Z","references":["https://osv.dev/vulnerability/GHSA-fcrp-7gc2-93g7","https://github.com/envoyproxy/gateway/security/advisories/GHSA-fcrp-7gc2-93g7","https://github.com/envoyproxy/gateway"],"severity":{"label":"medium","score":6.4},"sources":[{"source":"osv","source_id":"GHSA-fcrp-7gc2-93g7","url":"https://osv.dev/vulnerability/GHSA-fcrp-7gc2-93g7"}],"summary":"Envoy Gateway custom backendRef cross-namespace ReferenceGrant bypass"}