Database/Container, Kubernetes & orchestration
Cilium: CIDR ipBlock rules without selectors generate a wildcard, over-permitting traffic
CVSS 5.4CVE-2026-56743Container, Kubernetes & orchestrationcurated
Impact
CIDR ipBlock rules without selectors generate a wildcard, over-permitting traffic
Who can reach it
Any tenant workload
What to do
Rolling Cilium upgrade
References
Related entries
- Cilium: Denial of service in the Cilium dataplaneCVE-2025-23028 · CiliumMedium
- Cilium: Agent pod hostPath allows writing to /opt/cni/bin, replacing the CNI binary on the hostCVE-2023-27593 · CiliumMedium
- Cilium: Deny rules for prefixes broader than /32 can be ignoredCVE-2024-47825 · CiliumMedium
- Cilium: WireGuard encryption gap in a specific Cilium configurationCVE-2025-32793 · CiliumMedium
- Cilium: Egress policies referencing AWS security group IDs are misappliedCVE-2025-64715 · CiliumMedium
- Cilium: With L7 enabled, the embedded Envoy exposes a world-accessible admin.sock on the clusterCVE-2026-49445 · CiliumCritical
This entry is curated: imported from vendor advisories with machine assistance, not yet individually verified. Confirm against your vendor's advisory before acting, and report anything wrong.