CVE-2026-26963
Fixed in a distro release EPSS <1%CVSS 6.1
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.
Products: cilium
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/cilium/cilium | 1.18.6 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu 22.04 LTS | golang-github-cilium-ebpf | no fix |
| Ubuntu 24.04 LTS | golang-github-cilium-ebpf | no fix |
| Ubuntu 25.10 | golang-github-cilium-ebpf | no fix |
| Ubuntu 26.04 LTS | golang-github-cilium-ebpf | no fix |
| Ubuntu 26.10 | golang-github-cilium-ebpf | no fix |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260226T182644-150000.1.149.1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 |