Open redirect to another domain after login with next query

[pellepelle3]

NetBox version

v3.2.7

Python version

3.9

Steps to Reproduce

On login the query string next can redirect to another domain with //www.google.com
/login/?next={path}
/login/?next=/home
/login/?next=//www.google.com

Expected Behavior

Only redirect to a Path of the current domain.
/login/?next=/home (success)
/login/?next=//www.google.com (should fail and redirect to home)

Observed Behavior

/login/?next=/home (success)
/login/?next=//www.google.com (success)