Request-url-http-3a-2f-2f169.254.169.254-2flatest-2fmeta Data-2fiam-2fsecurity Credentials-2f Here

Instead of a valid image URL, the attacker inputs http://169.254.169[role-name] .

Decoded, the actual endpoint is:

Stealing IAM Credentials from the Instance Metadata Service * To determine if the EC2 instance has an IAM role associated with it, Hacking The Cloud Instead of a valid image URL, the attacker inputs http://169

In every case, the root cause was .