An issue in the component Item_subselect::init_expr_cache_tracker of MariaDB Server v10.6 and below was discovered to allow attackers to cause a Denial of Service (DoS) via specially crafted SQL statements.
https://security.netapp.com/advisory/ntap-20220519-0006/
https://lists.debian.org/debian-lts-announce/2022/09/msg00023.html