Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (routingMode=native) and in Cilium 1.14.4 in tunneling mode (routingMode=tunnel). Not that in tunneling mode, encryption.wireguard.encapsulate must be set to true. There is no known workaround for this issue.
| Software | From | Fixed in |
|---|---|---|
github.com/cilium/cilium
|
1.14.0 | 1.14.8 |
github.com/cilium/cilium
|
1.15.0 | 1.15.2 |
| cilium / cilium | 1.15.0 | 1.15.2 |
| cilium / cilium | 1.14.0 | 1.14.8 |