CVE-2025-30162 Information

Description

Cilium is a networking observability and security solution with an eBPF-based dataplane. For Cilium users who use Gateway API for Ingress for some services and use LB-IPAM or BGP for LB Service implementation and use network policies to block egress traffic from workloads in a namespace to workloads in other namespaces egress traffic from workloads covered by such network policies to LoadBalancers configured by Gateway resources will incorrectly be allowed. LoadBalancer resources not deployed via a Gateway API configuration are not affected by this issue. This issue affects: Cilium v1.15 between v1.15.0 and v1.15.14 inclusive v1.16 between v1.16.0 and v1.16.7 inclusive and v1.17 between v1.17.0 and v1.17.1 inclusive. This issue is fixed in Cilium v1.15.15 v1.16.8 and v1.17.2. A Clusterwide Cilium Network Policy can be used to work around this issue for users who are unable to upgrade.

Reference

https://docs.cilium.io/en/stable/network/lb-ipam https://github.com/cilium/cilium/security/advisories/GHSA-24qp-4xx8-3jvj https://github.com/cilium/proxy/pull/1172