diff --git a/e2e_test/source/cdc/mysql_cdc.sql b/e2e_test/source/cdc/mysql_cdc.sql
index dd1a1f70628a0..0ac47fc7fbd1b 100644
--- a/e2e_test/source/cdc/mysql_cdc.sql
+++ b/e2e_test/source/cdc/mysql_cdc.sql
@@ -49,13 +49,14 @@ VALUES (1,1,'no'),
        (3,3,'no'),
        (4,4,'no');
 
--- user rwcdc used for shared mysql source
-CREATE USER 'rwcdc'@'%' IDENTIFIED BY '123456';
-GRANT SELECT, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'rwcdc'@'%';
-
 CREATE USER 'dbz'@'%' IDENTIFIED BY '123456';
 GRANT SELECT, RELOAD, SHOW DATABASES, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'dbz'@'%';
 
+CREATE USER 'rwcdc'@'%' IDENTIFIED BY '123456';
+GRANT SELECT, RELOAD, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'rwcdc'@'%';
+
+FLUSH PRIVILEGES;
+
 CREATE TABLE tt3 (v1 int primary key, v2 timestamp);
 INSERT INTO tt3 VALUES (1, '2020-07-30 10:08:22');
 INSERT INTO tt3 VALUES (2, '2020-07-31 10:09:22');
diff --git a/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java b/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java
index b01dd76b001bf..2c6cee3dfba73 100644
--- a/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java
+++ b/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java
@@ -181,16 +181,10 @@ private void validateTableSchema() throws SQLException {
     }
 
     private void validatePrivileges() throws SQLException {
-        final String[] dedicatedSourcePrivileges = {
-            "SELECT", "RELOAD", "SHOW DATABASES", "REPLICATION SLAVE", "REPLICATION CLIENT",
+        String[] privilegesRequired = {
+            "SELECT", "RELOAD", "REPLICATION SLAVE", "REPLICATION CLIENT",
         };
 
-        final String[] sharedSourcePrivileges = {
-            "SELECT", "REPLICATION SLAVE", "REPLICATION CLIENT",
-        };
-
-        String[] privilegesRequired =
-                isMultiTableShared ? sharedSourcePrivileges : dedicatedSourcePrivileges;
         var hashSet = new HashSet<>(List.of(privilegesRequired));
         try (var stmt = jdbcConnection.createStatement()) {
             var res = stmt.executeQuery(ValidatorUtils.getSql("mysql.grants"));