{"schema_version":"1.3.1","id":"GO-2026-4856","modified":"2026-03-26T20:33:09Z","published":"2026-03-26T20:33:09Z","aliases":["CVE-2026-33726","GHSA-hxv8-4j4r-cqgv"],"summary":"Cilium L7 proxy may bypass Kubernetes NetworkPolicy for same-node traffic in github.com/cilium/cilium","details":"Cilium L7 proxy may bypass Kubernetes NetworkPolicy for same-node traffic in github.com/cilium/cilium","affected":[{"package":{"name":"github.com/cilium/cilium","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.17.14"},{"introduced":"1.18.0"},{"fixed":"1.18.8"},{"introduced":"1.19.0"},{"fixed":"1.19.2"}]}],"ecosystem_specific":{}}],"references":[{"type":"ADVISORY","url":"https://github.com/cilium/cilium/security/advisories/GHSA-hxv8-4j4r-cqgv"},{"type":"FIX","url":"https://github.com/cilium/cilium/pull/44693"},{"type":"WEB","url":"https://docs.cilium.io/en/stable/network/concepts/routing/#routing"},{"type":"WEB","url":"https://docs.cilium.io/en/stable/network/kubernetes/policy/#network-policy"},{"type":"WEB","url":"https://docs.cilium.io/en/stable/network/servicemesh/l7-traffic-management"},{"type":"WEB","url":"https://docs.cilium.io/en/stable/operations/performance/tuning/#ebpf-host-routing"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4856","review_status":"UNREVIEWED"}}