CVE-2020-10996
An issue was discovered in Percona XtraDB Cluster before 5.7.28-31.41.2. A bundled script inadvertently sets a static transition_key for SST processes in place of the random key expected.
Date published : 2020-04-27
https://www.percona.com/blog/2020/04/20/cve-2020-10996-percona-xtradb-cluster-sst-script-static-key/