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Fencer Vulns
low 3.4

CVE-2025-30163 json

Node based network policies may incorrectly allow workload traffic

published 2025-03-24 19 mo ago modified 2026-09-08 2 mo ago also BIT-cilium-2025-30163 , BIT-cilium-operator-2025-30163 , BIT-hubble-relay-2025-30163 , EUVD-2025-8006 , GHSA-c6pf-2v8j-96mc , GO-2025-3561

cvss
3.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies (`fromNodes` and `toNodes`) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in `fromNodes` and `toNodes` sections of network policies. Node based network policy is disabled by default in Cilium. This issue affects: Cilium 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 v1.16.8 and v1.17.2. Users can work around this issue by ensuring that the labels used in `fromNodes` and `toNodes` fields are used exclusively by nodes and not by other endpoints.

Patch / fix

  • go github.com/cilium/cilium 1.16.8, 1.17.2
  • bitnami cilium 1.17.2
  • bitnami cilium-operator 1.17.2
  • bitnami hubble-relay 1.17.2
  • cilium cilium 1.16.8, 1.17.2
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250327T184518-1.1

opensuse advisories openSUSE-SU-2025:14937-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-30163 updated cvss 3.4

cilium: Node based network policies may incorrectly allow workload traffic

  • Red Hat Network Observability Operator network-observability/network-observability-rhel9-operator, network-observability/network-observability-operator-bundle, network-observability/network-observability-ebpf-agent-rhel9, network-observability/network-observability-flowlogs-pipeline-rhel9 Red Hat OpenShift Developer Tools and Services openshift4/ose-jenkins, ocp-tools-4/jenkins-agent-base-rhel8, ocp-tools-4/jenkins-agent-base-rhel9 Red Hat OpenShift Service Mesh 2 openshift-service-mesh/istio-cni-rhel8, openshift-service-mesh/istio-pilot-rhel9, openshift-service-mesh/istio-proxyv2-rhel8, openshift-service-mesh/istio-proxyv2-rhel9 Red Hat Power monitoring for Red Hat OpenShift openshift-power-monitoring/kepler-rhel9 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/thanos-rhel9, rhacm2/prometheus-rhel9, rhacm2/acm-prometheus-rhel9-operator, rhacm2/acm-prometheus-config-reloader-rhel9 Red Hat Enterprise Linux 8 runc, podman, podman-tests, podman-docker, podman-remote, podman-gvproxy, +3 more
    +2 more products
    Red Hat Enterprise Linux 9 runc, podman, buildah, podman-tests, buildah-tests, podman-docker, +4 more Red Hat Enterprise Linux 10 delve
    affected: workaround, no fix available “Users can work around this issue by ensuring that the labels used in `fromNodes` and `toNodes` fields are used exclusively by nodes and not by other endpoints.”
  • Red Hat OpenShift Container Platform 4 runc, cri-o, podman, openshift, microshift, podman-tests, +51 more
    affected: workaround, no fix available, no fix planned “Users can work around this issue by ensuring that the labels used in `fromNodes` and `toNodes` fields are used exclusively by nodes and not by other endpoints.”
  • Red Hat OpenShift distributed tracing 3 rhosdt/tempo-rhel8, rhosdt/tempo-query-rhel8, rhosdt/tempo-gateway-rhel8, rhosdt/tempo-rhel8-operator, rhosdt/tempo-operator-bundle, rhosdt/tempo-gateway-opa-rhel8, +1 more Red Hat OpenShift Virtualization 4 kubevirt, container-native-virtualization/virt-api-rhel9, container-native-virtualization/wasp-agent-rhel9, container-native-virtualization/sidecar-shim-rhel9, container-native-virtualization/virt-handler-rhel9, container-native-virtualization/virt-launcher-rhel9, +7 more
    affected: workaround, no fix available “Users can work around this issue by ensuring that the labels used in `fromNodes` and `toNodes` fields are used exclusively by nodes and not by other endpoints.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.4 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
GitHub 3.1 3.4 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
NVD 3.1 4.7 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
OSV 3.1 4.7 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/cilium/cilium
>=1.16.0, <1.16.8
>=1.17.0, <1.17.2
1.16.8
1.17.2
bitnami cilium
>=1.16.0, <1.17.2
1.17.2
bitnami cilium-operator
>=1.16.0, <1.17.2
1.17.2
bitnami hubble-relay
>=1.16.0, <1.17.2
1.17.2

Affected products

  • cilium cilium

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.