You can work around it like this
- Go to S3 console and create a new bucket. Remember that bucket names must be globally unique, meaning that it can’t be the same as any other bucket in any other account in the whole of AWS! So choose a name like
test-5235435235
where you randomly choose numbers. - Upload your template to this bucket
- Copy the URL
- In the CloudFormation create new stack, select
Amazon S3 URL
and paste the URL you copied.