Ainur Iagudin enhanced file upload security and reliability in the dbeaver/cloudbeaver repository by consolidating validation logic within the WebSQLFileLoaderServlet. Focusing on backend development and API security, Ainur replaced regex-based forbidden character checks with compiled Pattern-based validation for upload paths and enforced strict UUID validation for file IDs, effectively mitigating path traversal and injection risks. The work, implemented in Java, also improved error messaging for invalid inputs and addressed blob upload validation issues under CB-6085. These changes strengthened the robustness of the file handling pipeline, contributing to improved data integrity and user trust in the cloudbeaver platform.