[Bug]: aws_cloudformation_stack outputs disappear when using sensitive parameters

[medains]

Terraform Core Version

1.5.6

AWS Provider Version

5.13.0,5.14.0,5.15.0

Affected Resource(s)

• aws_cloudformation_stack

Expected Behavior

Apply with no error.

Actual Behavior

Error during apply.

Relevant Error/Panic Output Snippet

Error: Missing map element

   on main.tf line 64, in output "test":
   64:   value = aws_cloudformation_stack.test_stack.outputs.arn
     ├────────────────
     │ aws_cloudformation_stack.test_stack.outputs is empty map of string

 This map does not have an element with the key "arn".

Terraform Configuration Files

terraform {
  required_providers {
    aws = {
      version = "=5.13.0"
    }
  }
}
provider "aws" {
  region = "eu-west-2"
}

locals {
  minimal_stack = {
      Parameters = {
        PolicySid = {
          Type = "String"
          Default = "testSid"
          Description = "Sid for IAM policy statement"
        }
      }
      Resources = {
        myGroup = {
          Type = "AWS::IAM::Group"
        }
        myPolicy = {
          Type = "AWS::IAM::Policy"
          Properties = {
            PolicyName = "TestPolicy"
            PolicyDocument = {
              Statement = [{
                Sid = { Ref = "PolicySid" }
                Effect = "Allow",
                Action = "cloudformation:Get*",
                Resource = "*"
              }]
            }
            Groups = [{ Ref = "myGroup" }]
          }
        }
      }
      Outputs = {
        arn = {
          Value = { Ref = "myPolicy" }
          Description = "Policy"
        }
      }
  }
}

data "local_sensitive_file" "test" {
  filename = "${path.module}/sensitive_content.txt"
}

resource "aws_cloudformation_stack" "test_stack" {
    name = "TestStack"
    template_body =  jsonencode(local.minimal_stack)
    parameters = {
      PolicySid = data.local_sensitive_file.test.content
    }
    capabilities  = ["CAPABILITY_NAMED_IAM"]
}

output "test" {
  value = aws_cloudformation_stack.test_stack.outputs.arn
}

Steps to Reproduce

• echo "somevalue" > sensitive_content.txt
• terraform apply
  Should apply cleanly
• terraform apply
  There will show an "update in place" to the cloudformation stack due to the sensitive parameter. But the cloudformation stack doesn't actually change, and has an empty output map.

Debug Output

No response

Panic Output

No response

Important Factoids

I've cut this down to use a sensitive file as the source of sensitive data, but it would equally apply to secrets read from SSM or some other sensitive source (random_secret or anything like that)

References

This is possibly a side-effect from the change in #33059
Pinning to 5.12.0 is a workaround for the moment.

Would you like to implement a fix?

No

[github-actions]

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[github-actions]

This functionality has been released in v5.22.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

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