zhongyu09 OpenChatBI generate_sql.py _validate_sql_safety sql injection

A security flaw has been discovered in zhongyu09 OpenChatBI up to 0.3.0. Affected by this vulnerability is the function _validate_sql_safety of the file openchatbi/text2sql/generate_sql.py. Performing a manipulation results in sql injection. The attack can be initiated remotely. Versions v0.2.0 through v0.2.2 have no SQL safety validation at all, while v0.3.0 introduced a validator and v1.0.0b1/main kept the same incomplete one with an optional stricter mode. The vendor was contacted early about this disclosure but did not respond in any way.