CVE-2025-30162 East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
Attackers can bypass egress network policies for traffic routed through Gateway API load balancers in specific Cilium configurations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-30162?
CVE-2025-30162 is a low-severity missing authorization vulnerability in cilium, published on 24 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-863
Which versions are affected by CVE-2025-30162?
10 open source packages ship an affected version, including github.com/cilium/cilium, cilium and cilium-operator. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/cilium/cilium Go | From 1.15.0 | 1.15.15, 1.16.8, 1.17.2 |
github.com/cilium/cilium Go | From 1.15.0 | 1.15.15 |
github.com/cilium/cilium Go | From 1.15.0 | 1.15.15 |
github.com/cilium/cilium Go | From 1.16.0 | 1.16.8 |
github.com/cilium/cilium Go | From 1.16.0 | 1.16.8 |
github.com/cilium/cilium Go | From 1.17.0 | 1.17.2 |
4 more packages
github.com/cilium/cilium Go | From 1.17.0 | 1.17.2 |
cilium Bitnami | From 1.15.0 | 1.17.2 |
cilium-operator Bitnami | From 1.15.0 | 1.17.2 |
hubble-relay Bitnami | From 1.15.0 | 1.17.2 |
Products include Cilium Cilium.
How do I fix CVE-2025-30162?
Upgrade github.com/cilium/cilium to a fixed version for your release line: 1.15.15, 1.16.8 or 1.17.2.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-30162 being exploited?
There is no known exploitation of CVE-2025-30162 in the wild and no public exploit code.
Other vulnerabilities in cilium
- CVE-2026-49445 Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access
- CVE-2022-29178 Incorrect Default Permissions in Cilium
- CVE-2024-28860 Insecure IPsec transport encryption in Cilium
- CVE-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive
- CVE-2024-37307 Cilium leaks sensitive information in cilium-bugtool
Sources
Also known as BIT-cilium-2025-30162, BIT-cilium-operator-2025-30162, BIT-hubble-relay-2025-30162, GHSA-24qp-4xx8-3jvj, GO-2025-3560, MINI-27jf-56f7-w482 and 3 more.