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

The AWS Instance Metadata Service (IMDS) endpoint at http://169.254.169.254/latest/meta-data/iam/security-credentials/ allows EC2 instances to retrieve temporary, auto-rotated IAM security credentials, eliminating the need to hardcode long-term keys. While IMDSv1 is susceptible to Server-Side Request Forgery (SSRF) attacks, AWS strongly advises adopting IMDSv2 to enforce session-oriented authentication and mitigate credential theft risks. For official technical steps, refer to the AWS User Guide on retrieving credentials.

Code Snippet

Below is a simple Python example using the requests library to fetch and display IAM security credentials: The AWS Instance Metadata Service (IMDS) endpoint at

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