CVE-2026-26963 — Cilium may not enforce host firewall policies when Native Routing, WireGuard and Node Encryption are enabled
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.18.0 through 1.18.5 will incorrectly permit traffic from Pods on other node…
Published: 2026-02-19 · CVSS: 6.1 · CVSS 3.1
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.18.0 through 1.18.5 will incorrectly permit traffic from Pods on other nodes when Native Routing, WireGuard and Node Encryption are enabled. This issue has been fixed in version 1.18.6.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7