Lambda function should have a dead-letter queue configured
Medium
AWS
General
aws-lambda-function-lambda-function-dead-letter-qu
Applies to
AWS::Lambda::Function
What CGPulse checks
A resource passes this rule when deadLetterConfig.targetArn must be set true. Anything else is reported as a finding with the evaluated property value attached as evidence.
How to fix it
Configure a dead-letter queue (SQS/SNS) to capture failed asynchronous invocations. In AWS Console: Lambda > Functions > select function > Configuration > Asynchronous invocation > set DLQ. See: https://docs.aws.amazon.com/lambda/latest/dg/invocation-async.html
Terraform
resource "aws_lambda_function" "{name}" {
dead_letter_config {
target_arn = aws_sqs_queue.dlq.arn
}
}
Compliance frameworks
Is your environment compliant with this rule?
CGPulse checks it — and 621 others — against your Azure and AWS accounts with read-only access.
Related AWS rules
- ACM certificate must be eligible for renewal
- ACM certificate must be in issued status
- Amplify app should have basic auth disabled for production
- API Gateway REST API must have an endpoint configuration
- API Gateway V2 API must be properly configured
- App Runner service must have encryption enabled
- AppSync API must have logging configured
- AppSync API must have X-Ray tracing enabled