unbound:edge is vulnerable to non-responsive delegation attack. The attacker can cause a resolver to spend a lot of time/resources resolving records under a malicious delegation point where a considerable number of unresponsive NS records reside.
lists.debian.org/debian-lts-announce/2023/03/msg00024.html
lists.fedoraproject.org/archives/list/[email protected]/message/35QGS5FBQTG3DBSK7QV67PA64P24ABHY/
lists.fedoraproject.org/archives/list/[email protected]/message/3G2HS6CYPSIGAKO6QLEZPG3RD6AMPB7B/
lists.fedoraproject.org/archives/list/[email protected]/message/4S4EU6DMJXQFMAIE6SLAH4H5RNRU6VQL/
secdb.alpinelinux.org/edge/main.yaml
security.gentoo.org/glsa/202212-02
www.nlnetlabs.nl/downloads/unbound/CVE-2022-3204.txt