5678691 created the issue

My team accesses AWS through an STS process whereby a call is made to an API endpoint to retrieve credentials (AccessKeyId, SecretAccessKey, and SessionToken). For the AWS CLI we define the profile in the /.aws/credentials using credential_process and executing a bash command (this pulls authorization from my machine, calls the credentials API, and returns the credentials in a json format). This works just fine with the AWS CLI, but does not work with Cyberduck.

Is it possible to enable support for something like this?

[CyberDuckTesting]
region = us-west-2
credential_process = bash -c "~/.aws/fetch-cred.sh 111111111111"