AWSAppSyncAdministrator

Last Modified

Mar 12, 2026

March 12, 2026 at 09:25 PM UTC

Version

Total Versions

Created

Nov 4, 2019

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Risk

Medium

The same capabilities in a scoped form, resource policy writes, reads across all data, or full access to a whole service. Read from this policy document alone: trust policies, boundaries and SCPs in your account still decide what actually succeeds. How this is assessed

Medium
Can rewrite resource policies and sharing
Grants 1 permissions management action across 1 service (appsync) on any resource, enough to share resources outside the account.
appsync:setwebacl
Use with caution: Turn on IAM Access Analyzer external access findings, and keep account-level guards like S3 Block Public Access enabled.
Medium
Full appsync access on every resource
Uses appsync:* with Resource "*" and no condition, so every action AWS adds to that service later is granted too.
appsync:*
Use with caution: The grant grows every time the service does. For long-lived access, prefer a policy that lists the actions you actually need.

Policy Document

View on GitHub

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51{
  "PolicyVersion": {
    "Document": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Action": [
            "appsync:*"
          ],
          "Resource": "*"
        },
        {
          "Effect": "Allow",
          "Action": [
            "iam:PassRole"
          ],
          "Resource": "*",
          "Condition": {
            "StringEquals": {
              "iam:PassedToService": [
                "appsync.amazonaws.com"
              ]
            }
          }
        },
        {
          "Effect": "Allow",
          "Action": "iam:CreateServiceLinkedRole",
          "Resource": "*",
          "Condition": {
            "StringEquals": {
              "iam:AWSServiceName": "appsync.amazonaws.com"
            }
          }
        },
        {
          "Effect": "Allow",
          "Action": [
            "iam:DeleteServiceLinkedRole",
            "iam:GetServiceLinkedRoleDeletionStatus"
          ],
          "Resource": "arn:aws:iam::*:role/aws-service-role/appsync.amazonaws.com/AWSServiceRoleForAppSync*"
        }
      ]
    },
    "VersionId": "v2",
    "IsDefaultVersion": true,
    "CreateDate": "2019-11-04T19:23:49+00:00"
  }
}