{"schema_version":"1.3.1","id":"GO-2026-6367","modified":"2026-09-10T14:48:42Z","published":"2026-09-10T14:48:42Z","aliases":["CVE-2026-56743","GHSA-fm8w-2m5w-9j7r"],"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","affected":[{"package":{"name":"github.com/cilium/cilium","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.19.0"},{"fixed":"1.19.5"}]}],"ecosystem_specific":{}}],"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"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-6367","review_status":"UNREVIEWED"}}