Is This Open To SQL Injection?

[Victor Subervi]

Hi;
I have this code:

    sql = 'insert into personalDataKeys values (%s, %s, %s)' % (store, user,
', %s'.join('%s' * len(col_vals))
    cursor.execute(sql, col_vals)

Is this open to injection attacks? If so, how correct?
TIA,
beno
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