Do I need to know programming to study a master's in computer science?

MCS or MSc in CS consiists upon;

• Basics of Programming
• Data Structure
• OOP
• Project

It means that you have a chance to LEARN there.

no you don't need to know it when you study masters, ;) you must study it before master and during university or before enrolling both of them.

it will be good but will not stop u from learning computer science