Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.
{
"cpes": [
"cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:maven:*:*"
],
"severity": "High"
}