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.
{
"versions": [
{
"introduced": "5.2.0"
},
{
"fixed": "5.2.4"
},
{
"introduced": "5.3.0"
},
{
"fixed": "5.3.2"
},
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.16"
},
{
"introduced": "5.0.0"
},
{
"fixed": "5.0.16"
},
{
"introduced": "5.1.0"
},
{
"fixed": "5.1.10"
}
]
}