CVE-2026-29196: Netmaker: Service User with Network Access Can Access config files with WireGuard Private Keys

A user assigned the platform-user role can retrieve WireGuard private keys of all wireguard configs in a network by calling GET /api/extclients/{network} or GET /api/nodes/{network}. While the Netmaker UI restricts visibility, the API endpoints return full records, including private keys, without filtering based on the requesting user’s ownership.

Credits Artem Danilov (Positive Technologies)