Galera replication technology, a key component of Percona XtraDB Cluster, suffered from a remote code execution vulnerability. Percona has been working with the vendor since early September on this issue and has made releases available to address the problem. Applicability A malicious party with access to the WSREP service port (4567/TCP) as well as prerequisite [&]

https://www.percona.com/blog/2020/10/30/cve-2020-15180-affects-percona-xtradb-cluster/