{"items":[{"id":"NVI-00016200","kind":"vulnerability","title":"Envoy Gateway custom backendRef cross-namespace ReferenceGrant bypass","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-fcrp-7gc2-93g7","CVE-2026-53718"],"plain_summary":"GitHub lists this reviewed advisory for github.com/envoyproxy/gateway, github.com/envoyproxy/gateway. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-65893bcf78a7ef0c891c614d93c97641"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-16T19:14:52.000Z","value":"6.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-43ed58ce3dd265b1d683f53ff9466327"},{"kind":"CVSS","as_of":"2026-09-25T14:10:13.927Z","value":"6.4 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-65893bcf78a7ef0c891c614d93c97641"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-43ed58ce3dd265b1d683f53ff9466327","url":"https://github.com/advisories/GHSA-fcrp-7gc2-93g7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-fcrp-7gc2-93g7","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"},{"id":"sr-65893bcf78a7ef0c891c614d93c97641","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53718","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-53718","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:48:05.462Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-43ed58ce3dd265b1d683f53ff9466327"],"technology":"github.com/envoyproxy/gateway","known_exclusions":[],"conditions_summary":"### Impact\nEnvoy Gateway accepts extension-managed custom backendRefs from an HTTPRoute to a backend resource in another namespace without requiring a matching Gateway API ReferenceGrant in the target namespace. This breaks the Gateway API cross-namespace consent model: the namespace that owns the referenced backend resource does not need to opt in with a ReferenceGrant before another namespace’s HTTPRoute can use that resource.\n\n### Patches\n1.7.4\n1.8.1","public_affected_ranges":[">= 1.8.0-rc.0, < 1.8.1"]},{"certainty":"source_listed","source_ids":["sr-43ed58ce3dd265b1d683f53ff9466327"],"technology":"github.com/envoyproxy/gateway","known_exclusions":[],"conditions_summary":"### Impact\nEnvoy Gateway accepts extension-managed custom backendRefs from an HTTPRoute to a backend resource in another namespace without requiring a matching Gateway API ReferenceGrant in the target namespace. This breaks the Gateway API cross-namespace consent model: the namespace that owns the referenced backend resource does not need to opt in with a ReferenceGrant before another namespace’s HTTPRoute can use that resource.\n\n### Patches\n1.7.4\n1.8.1","public_affected_ranges":["< 1.7.4"]}],"null_published_at":"2026-11-08T19:53:44.064Z","source_updated_at":"2026-07-16T19:14:52.000Z","source_disclosed_at":"2026-07-16T19:14:50.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-04T09:59:26.779Z"},{"id":"NVI-00016200","kind":"vulnerability","title":"Envoy Gateway custom backendRef cross-namespace ReferenceGrant bypass","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-fcrp-7gc2-93g7","CVE-2026-53718"],"plain_summary":"GitHub lists this reviewed advisory for github.com/envoyproxy/gateway, github.com/envoyproxy/gateway. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-43ed58ce3dd265b1d683f53ff9466327"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-16T19:14:52.000Z","value":"6.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-43ed58ce3dd265b1d683f53ff9466327"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-43ed58ce3dd265b1d683f53ff9466327","url":"https://github.com/advisories/GHSA-fcrp-7gc2-93g7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-fcrp-7gc2-93g7","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-43ed58ce3dd265b1d683f53ff9466327"],"technology":"github.com/envoyproxy/gateway","known_exclusions":[],"conditions_summary":"### Impact\nEnvoy Gateway accepts extension-managed custom backendRefs from an HTTPRoute to a backend resource in another namespace without requiring a matching Gateway API ReferenceGrant in the target namespace. This breaks the Gateway API cross-namespace consent model: the namespace that owns the referenced backend resource does not need to opt in with a ReferenceGrant before another namespace’s HTTPRoute can use that resource.\n\n### Patches\n1.7.4\n1.8.1","public_affected_ranges":[">= 1.8.0-rc.0, < 1.8.1"]},{"certainty":"source_listed","source_ids":["sr-43ed58ce3dd265b1d683f53ff9466327"],"technology":"github.com/envoyproxy/gateway","known_exclusions":[],"conditions_summary":"### Impact\nEnvoy Gateway accepts extension-managed custom backendRefs from an HTTPRoute to a backend resource in another namespace without requiring a matching Gateway API ReferenceGrant in the target namespace. This breaks the Gateway API cross-namespace consent model: the namespace that owns the referenced backend resource does not need to opt in with a ReferenceGrant before another namespace’s HTTPRoute can use that resource.\n\n### Patches\n1.7.4\n1.8.1","public_affected_ranges":["< 1.7.4"]}],"null_published_at":"2026-11-04T10:04:27.904Z","source_updated_at":"2026-07-16T19:14:52.000Z","source_disclosed_at":"2026-07-16T19:14:50.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-04T09:59:26.779Z"}],"next_cursor":null,"snapshot_revision":"42594"}