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**Name of the Vulnerable Software and Affected Versions** Apache Linkis versions 1.3.0 through 1.5.0 **Description** A Random string security vulnerability exists in Spark EngineConn, where the random string generated by the Token when starting Py4j uses Commons Lang's RandomStringUtils. **Recommendations** For Apache Linkis versions 1.3.0 through 1.5.0, upgrade to version 1.6.0 to fix this issue.