In May through June of 2016 a static analysis was performed on version 3.0.5 of the Cassandra source code. The analysis included an automated analysis using HP Fortify v4.21 SCA and a manual analysis utilizing SciTools Understand v4. The results of that analysis includes the issue below.
In the file CqlRecordWriter.java on line 128 there is a portability problem with the call to toLowerCase() because it has different locales which may lead to unexpected output. This may also circumvent custom validation routines.