{"action":"Upgrade github.com/cilium/cilium to 1.17.14 or later.","affected":[{"fixed":"1.17.14","introduced":"0"},{"fixed":"1.18.8","introduced":"1.18.0"},{"fixed":"1.19.2","introduced":"1.19.0"}],"component":"github.com/cilium/cilium","cve_ids":["CVE-2026-33726"],"ecosystem":"Go","epss":0.00256,"exploited":false,"fixed_versions":["1.17.14","1.18.8","1.19.2"],"ghsa_id":"GHSA-hxv8-4j4r-cqgv","id":"tcs_01M5KGGJFC20BXV9JJQ9YKXNBN","modified_at":"2026-04-06T08:40:57.963093141Z","published_at":"2026-03-26T20:33:09Z","references":["https://osv.dev/vulnerability/GO-2026-4856","https://github.com/cilium/cilium/security/advisories/GHSA-hxv8-4j4r-cqgv","https://github.com/cilium/cilium/pull/44693","https://docs.cilium.io/en/stable/network/concepts/routing/#routing","https://docs.cilium.io/en/stable/network/kubernetes/policy/#network-policy","https://docs.cilium.io/en/stable/network/servicemesh/l7-traffic-management","https://docs.cilium.io/en/stable/operations/performance/tuning/#ebpf-host-routing"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GO-2026-4856","url":"https://osv.dev/vulnerability/GO-2026-4856"},{"source":"nvd","source_id":"CVE-2026-33726","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33726"}],"summary":"Cilium L7 proxy may bypass Kubernetes NetworkPolicy for same-node traffic in github.com/cilium/cilium"}