!!exclusive!!: Callback-url-file-3a-2f-2f-2fhome-2f-2a-2f.aws-2fcredentials

The string you provided, callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials , appears to be a URL-encoded path designed to target sensitive local files, specifically the located at file:///home/*/.aws/credentials .

. It requires a session token, making it much harder for SSRF to steal credentials. Least Privilege callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials