{"id":"GO-2026-6367","summary":"Cilium may unexpectedly allow ingress traffic from the local namespace when a Kubernetes NetworkPolicy is configured with an ipBlock match in github.com/cilium/cilium","details":"Cilium may unexpectedly allow ingress traffic from the local namespace when a Kubernetes NetworkPolicy is configured with an ipBlock match in github.com/cilium/cilium","aliases":["BIT-cilium-2026-56743","BIT-cilium-operator-2026-56743","BIT-hubble-relay-2026-56743","CVE-2026-56743","GHSA-fm8w-2m5w-9j7r"],"modified":"2026-09-10T15:25:32.738592014Z","published":"2026-09-10T14:48:42Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-6367","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/cilium/cilium/security/advisories/GHSA-fm8w-2m5w-9j7r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56743"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/1c84ae3b58a7cd54f7ee355e6c524c82f620eae8"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/bacea640404c0805c23515353dc1681c5bf35171"},{"type":"FIX","url":"https://github.com/cilium/cilium/pull/46305"},{"type":"FIX","url":"https://github.com/cilium/cilium/pull/46456"},{"type":"WEB","url":"https://github.com/cilium/cilium/releases/tag/v1.19.5"}],"affected":[{"package":{"name":"github.com/cilium/cilium","ecosystem":"Go","purl":"pkg:golang/github.com/cilium/cilium"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.19.0"},{"fixed":"1.19.5"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6367.json"}}],"schema_version":"1.9.0"}