http://169.254.169.254/latest/meta-data/iam/security-credentials/
This is a well-known and highly sensitive internal endpoint used by cloud providers, specifically Amazon Web Services (AWS) EC2 and similar services (like Google Cloud, Azure IMDS, or OpenStack). http://169
Below is a long-form, in-depth article about this endpoint: what it is, why it exists, the security risks, how attackers exploit it, and how to protect against it. This URL is the textbook example of a
This URL is the textbook example of a Server-Side Request Forgery (SSRF) vulnerability within a cloud environment. %3A for :
Note on Encoding: The use of URL encoding (e.g., %3A for :, %2F for /) is a standard evasion technique used to bypass Web Application Firewalls (WAFs) or input sanitization logic that might be looking for the string 169.254.169.254 in plaintext.