CVE-2025-30163

LOW

Node based network policies may incorrectly allow workload traffic

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2025-30163 has a selected CVSS score of 3.4 (low).

Description

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Mar 24, 2025 · Source: CVE List

Affected products and versions

2
ProductSourceVersion range

cilium

Browse cilium / cilium
CVE List>= 1.16.0, < 1.16.8affected
>= 1.17.0, < 1.17.2affected

github.com/cilium/cilium

Browse Go / github.com/cilium/cilium
GitHub Advisory1.16.0 to < 1.16.8 · Fixed in 1.16.8affected
1.17.0 to < 1.17.2 · Fixed in 1.17.2affected

References

5