{"schemaVersion":3,"id":"CVE-2026-56743","aliases":["CGA-97r3-6vcm-q392","CGA-p335-r737-g8jv","CGA-pcmh-vfh7-4pc4","GHSA-fm8w-2m5w-9j7r","BIT-cilium-2026-56743","BIT-cilium-operator-2026-56743","BIT-hubble-relay-2026-56743","GO-2026-6367","CGA-98mq-h6ph-px5q","CGA-c453-29c3-c4v9","CGA-fj59-7r5v-9277","CGA-fm43-7qhw-xh5g","CGA-hf7m-r8hg-wjw4","CGA-rg9f-68fx-8cx9","CGA-v9vq-43j8-5w2m","CGA-vv97-3963-36c2"],"status":"published","duplicateOf":null,"title":null,"description":"Cilium is a networking, observability, and security solution. From 1.19.0 to 1.19.4, standard Kubernetes NetworkPolicy specifications using CIDR-based ipBlock rules without pod or namespace selectors erroneously generate a wildcard namespace allow rule when Cilium is configured with a custom clusterName rather than the default any value. The parser incorrectly instantiates a pod selector on selectorless peer definitions, allowing traffic from other workloads in the same namespace as the subject of the policy. 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