CVE-2020-5408

Spring Security versions 5.3.x prior to 5.3.2, 5.2.x prior to 5.2.4, 5.1.x
prior to 5.1.10, 5.0.x prior to 5.0.16 and 4.2.x prior to 4.2.16 use a
fixed null initialization vector with CBC Mode in the implementation of the
queryable text encryptor. A malicious user with access to the data that has
been encrypted using such an encryptor may be able to derive the
unencrypted values using a dictionary attack.