CVE-2025-30162

low

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.

References

https://github.com/cilium/proxy/pull/1172

https://github.com/cilium/cilium/security/advisories/GHSA-24qp-4xx8-3jvj

https://docs.cilium.io/en/stable/network/lb-ipam

Details

Source: Mitre, NVD

Published: 2025-03-24

Updated: 2025-03-27

Risk Information

CVSS v2

Base Score: 1.2

Vector: CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 3.2

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

Severity: Low