An information leak in Nabu Casa Home Assistant Operating System and Home Assistant Supervised 2022.03 allows a DNS operator to gain knowledge about internal network resources via the hardcoded DNS resolver configuration.
https://github.com/home-assistant/plugin-dns/pull/59
https://github.com/home-assistant/plugin-dns/pull/58
https://github.com/home-assistant/plugin-dns/pull/56
https://github.com/home-assistant/plugin-dns/pull/55
https://github.com/home-assistant/plugin-dns/issues/70
https://github.com/home-assistant/plugin-dns/issues/64
https://github.com/home-assistant/plugin-dns/issues/6
https://github.com/home-assistant/plugin-dns/issues/54
https://github.com/home-assistant/plugin-dns/issues/53
https://github.com/home-assistant/plugin-dns/issues/51
https://github.com/home-assistant/plugin-dns/issues/50
https://github.com/home-assistant/plugin-dns/issues/20
https://community.home-assistant.io/t/ha-os-dns-setting-configuration-not-respected/356572