No, Canvas does not have a feature to share student submissions in Assignments

Some workarounds to achieve this: 

  1. Once students have submitted their assignments, you can download all the student submissions, then upload the downloaded files to a folder to allow students to access the files.

  2. Use a graded discussion. Select Users must post before seeing replies when setting up the discussion so that students need to first submit their assignment submission as a discussion post before seeing other students' submissions (posts).  

  3. Create a +Groupset from People to create a single group in which all students in your class are assigned to that single group. Students can then access the Group Homepage to upload files.
    One issue with this method is that you do not get to use the SpeedGrader to grade and annotate the students' submissions.