CVE-2025-30162
published 2025-03-24CVE-2025-30162: 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…
PriorityP419medium4.3CVSS 3.1
AVLACLPRNUINSCCLINAN
EPSS
0.22%
12.7th percentile
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cilium | cilium | — | — |
| cilium | cilium | — | — |
| cilium | cilium | — | — |
| cilium | cilium | >= 1.15.0 < 1.15.15 | 1.15.15 |
| cilium | cilium | >= 1.16.0 < 1.16.8 | 1.16.8 |
| cilium | cilium | >= 1.17.0 < 1.17.2 | 1.17.2 |
| github.com | cilium_cilium | >= 1.15.0 < 1.15.15 | 1.15.15 |
| github.com | cilium_cilium | >= 1.16.0 < 1.16.8 | 1.16.8 |
| github.com | cilium_cilium | >= 1.17.0 < 1.17.2 | 1.17.2 |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
vendor_redhat3.2LOW
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers in github.com/cilium/cilium
osv·2025-03-25
CVE-2025-30162 Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers in github.com/cilium/cilium
Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers in github.com/cilium/cilium
Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers in github.com/cilium/cilium
OSV
Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
osv·2025-03-24
CVE-2025-30162 [LOW] Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
### Impact
For Cilium users who:
- Use Gateway API for Ingress for some services **AND**
- Use [LB-IPAM](https://docs.cilium.io/en/stable/network/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.
### Patches
This issue was fixed by https://github.com/cilium/proxy/pull/1172.
This issue affects:
- Cilium v1.15 between v1.15.
GHSA
Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
ghsa·2025-03-24
CVE-2025-30162 [LOW] CWE-863 Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
Cilium East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
### Impact
For Cilium users who:
- Use Gateway API for Ingress for some services **AND**
- Use [LB-IPAM](https://docs.cilium.io/en/stable/network/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.
### Patches
This issue was fixed by https://github.com/cilium/proxy/pull/1172.
This issue affects:
- Cilium v1.15 between v1.15.
Red Hat
cilium: East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
vendor_redhat·2025-03-24·CVSS 3.2
CVE-2025-30162 [LOW] CWE-863 cilium: East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
cilium: East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers
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
No detection rules found.
No public exploits indexed.
2025-03-24
Published