*Severity:* important *Description:* In Apache Linkis <=1.2.0 when used with the MySQL Connector/J, a deserialization vulnerability with possible remote code execution impact exists when an attacker has write access to a database and configures a JDBC EC with a MySQL data source and malicious parameters. Therefore, the parameters in the jdbc url should be blacklisted. Versions of Apache Linkis <= 1.2.0 will be affected, We recommend users to update to 1.3.0.
*Mitigation:* <= 1.2.0 users should upgrade to 1.3.0. Or upgrade the materials of JDBC EngineConn separately, you can refer to: https://github.com/apache/incubator-linkis/tree/master/linkis-engineconn-plugins/jdbc *Credit:* This issue was discovered by 4ra1n and zac from ZAC Security Team