AmazonS3ExpressReadOnlyAccess

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Summary

Provides read only access to S3Express operations for S3 directory buckets.

Permissions imported from the AWS Managed Policy Reference Guide; other sections pending editorial review.

Identity

ARN: arn:aws:iam::aws:policy/AmazonS3ExpressReadOnlyAccess
Default version: v1
Created: 2026-04-03
Last edited: 2026-04-03
Services: s3express

Control-plane actions (10)

By access level: 3 List, 6 Read, 1 Write.

Control-plane actions by service
Service	Granted	Access levels and limits	Granted by
S3 Express	10 of 28	3 List, 6 Read, 1 Write; 1 restricted, 1 conditional	s3express:CreateSession, s3express:GetAccessPoint, s3express:GetAccessPointPolicy, s3express:GetAccessPointScope, s3express:GetBucketPolicy, s3express:GetEncryptionConfiguration, s3express:GetLifecycleConfiguration, s3express:ListAccessPointsForDirectoryBuckets, s3express:ListAllMyDirectoryBuckets, s3express:ListTagsForResource

S3 Express: 10 actions

s3express:CreateSession (Write)
s3express:GetAccessPoint (Read)
s3express:GetAccessPointPolicy (Read)
s3express:GetAccessPointScope (Read)
s3express:GetBucketPolicy (Read)
s3express:GetEncryptionConfiguration (Read)
s3express:GetLifecycleConfiguration (Read)
s3express:ListAccessPointsForDirectoryBuckets (List)
s3express:ListAllMyDirectoryBuckets (List)
s3express:ListTagsForResource (List)

Data-plane actions (0)

By access level: none.

This policy grants no actions in this plane.

Excluded and conditional actions

No patterns are excluded by NotAction or Deny statements.

Resource scope and attachment

Resource scope across granted actions: all-resources.

Can be attached: Yes, to users, groups and roles.

Why this tier

Grants 1 write, tagging or permissions-management action, short of full control of any service.

Guidance

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Same service

AmazonS3ExpressFullAccess

Same domain

Frequently asked questions

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Policy JSON

Download policy.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "S3ExpressReadOnlySessionObjectAccess",
      "Effect": "Allow",
      "Action": "s3express:CreateSession",
      "Resource": "*",
      "Condition": {
        "StringEquals": {
          "s3express:SessionMode": "ReadOnly"
        }
      }
    },
    {
      "Sid": "S3ExpressReadOnlyControlPlaneAccess",
      "Effect": "Allow",
      "Action": [
        "s3express:GetBucketPolicy",
        "s3express:GetEncryptionConfiguration",
        "s3express:GetLifecycleConfiguration",
        "s3express:GetAccessPoint",
        "s3express:GetAccessPointPolicy",
        "s3express:GetAccessPointScope",
        "s3express:ListAllMyDirectoryBuckets",
        "s3express:ListAccessPointsForDirectoryBuckets",
        "s3express:ListTagsForResource"
      ],
      "Resource": "*"
    }
  ]
}

Version history

Current version v1, edited by AWS on 2026-04-03. Version history is recorded from 2026-11-11. Earlier versions are in the IAM console under Policy versions.

Attach snippets

AWS CLI

aws iam attach-role-policy --role-name ROLE_NAME --policy-arn arn:aws:iam::aws:policy/AmazonS3ExpressReadOnlyAccess
aws iam attach-user-policy --user-name USER_NAME --policy-arn arn:aws:iam::aws:policy/AmazonS3ExpressReadOnlyAccess
aws iam attach-group-policy --group-name GROUP_NAME --policy-arn arn:aws:iam::aws:policy/AmazonS3ExpressReadOnlyAccess

CloudFormation

Resources:
  ExampleRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument: {}  # replace with your trust policy
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonS3ExpressReadOnlyAccess

Terraform

resource "aws_iam_role_policy_attachment" "amazons3expressreadonlyaccess" {
  role       = aws_iam_role.example.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonS3ExpressReadOnlyAccess"
}

CDK (TypeScript)

role.addManagedPolicy(
  iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonS3ExpressReadOnlyAccess"),
);

Sources

Pending editorial review. No editorial sources are listed yet.