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.
{ "cpes": [ "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*", "cpe:2.3:a:cilium:cilium:*:*:*:*:*:go:*:*" ], "severity": "Medium" }