AmazonCognitoUnAuthedIdentitiesSessionPolicy

Summary

This policy defines the set of permissions allowed for unauthenticated identities for Cognito Identity Pools. This policy is not intended to be used as a stand alone permission policy. It is used as a guardrail against overly permissive policies attached for roles in an identity pool. Do not attach this policy to any roles, as Cognito Identity Service will automatically include it as a scoped down policy when creating credentials. The privileges to temporarily access other AWS resources through the enhanced flow will now be defined by the intersection of the role associated with the identity of the unauthenticated user provided by a service, and the privileges given in this managed policy that is owned by Cognito.

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

Identity

ARN

arn:aws:iam::aws:policy/AmazonCognitoUnAuthedIdentitiesSessionPolicyCopy ARN

Default version

v4

Created

2023-07-19

Last edited

2026-05-01

Services

comprehend, firehose, geo, kms, mobiletargeting, personalize, polly, rekognition, rum, sagemaker, transcribe, translate

Control-plane actions (489)

By access level: 55 List, 189 Read, 16 Tagging, 229 Write.

Data-plane actions (8)

By access level: 1 Read, 7 Write.

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 at least 80% of the write and permissions-management actions of: comprehend (33 of 33), firehose (7 of 7), mobiletargeting (66 of 66), personalize (38 of 38), rekognition (37 of 37), transcribe (30 of 30), translate (7 of 7).
• Can read secret values or decrypt data. Reads are not a High privilege rule.

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.

Related policies

Same service

• AdministratorAccess-Amplify
• AmazonChimeTranscriptionServiceLinkedRolePolicy
• AmazonKinesisAnalyticsReadOnly
• AmazonKinesisFirehoseFullAccess
• AmazonKinesisFirehoseReadOnlyAccess
• AmazonLexV2BotPolicy
• AmazonPersonalizeFullAccess
• AmazonPollyFullAccess

Same domain

• AgentRegistryFullAccess
• AgentRegistryReadOnlyAccess
• AIOpsAssistantIncidentReportPolicy
• AIOpsAssistantPolicy
• AIOpsConsoleAdminPolicy
• AIOpsOperatorAccess
• AIOpsReadOnlyAccess
• AmazonAugmentedAIFullAccess

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": "CognitoUnAuthedIdentitiesSessionPolicy",
      "Effect": "Allow",
      "Action": [
        "rum:PutRumEvents",
        "sagemaker:InvokeEndpoint",
        "polly:*",
        "comprehend:*",
        "translate:*",
        "transcribe:*",
        "rekognition:*",
        "mobiletargeting:*",
        "firehose:*",
        "personalize:*",
        "geo:GetMap*",
        "geo:ListMaps",
        "geo:SearchPlaceIndex*",
        "geo:GetPlace",
        "geo:CalculateRoute*",
        "geo:*Geofence",
        "geo:*Geofences",
        "geo:*DevicePosition*",
        "kms:Encrypt",
        "kms:Decrypt",
        "kms:ReEncryptTo",
        "kms:ReEncryptFrom",
        "kms:GenerateDataKey",
        "kms:GenerateDataKeyPair",
        "kms:GenerateDataKeyPairWithoutPlaintext",
        "kms:GenerateDataKeyWithoutPlaintext"
      ],
      "Resource": "*"
    }
  ]
}

Version history

Current version v4, edited by AWS on 2026-05-01. Version history is recorded from 2026-11-11. Earlier versions are in the IAM console under Policy versions.

Attach snippets

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

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

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

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

Sources

Pending editorial review. No editorial sources are listed yet.

• Official AWS reference for AmazonCognitoUnAuthedIdentitiesSessionPolicy
• Report a data issue