CVE-2026-28795: ZHONGYU09 Openchatbi

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

OpenChatBI is an intelligent chat-based BI tool powered by large language models, designed to help users query, analyze, and visualize data through natural language conversations. Prior to version 0.2.2, the save_report tool in openchatbi/tool/save_report.py suffers from a critical path traversal vulnerability due to insufficient input sanitization of the file_format parameter. This issue has been patched in version 0.2.2.

Affected products

• ZHONGYU09 Openchatbi: before 0.2.2 (fixed in 0.2.2)

Published 2026-03-06. Last modified 2026-06-17.