A vulnerability was found in Keycloak 7.x where the user federation LDAP bind type is none (LDAP anonymous bind), any password, invalid or valid will be accepted.
Exploitability
AV:NAC:LPR:NUI:NScope
S:CImpact
C:LI:LA:L8.3/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:LAuthentication