CVE-2026-56743 | BDVDB-2026-348701 Detail

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. This issue is fixed in version 1.19.5.

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History#

1. Version 12026-07-15Record published in the CVE List.
2. Version 22026-07-16Most recent update recorded in the CVE List.