CVE-2026-22611 AWS SDK for .NET V4 adopted defense in depth enhancement for region parameter value

AWS SDK for .NET works with Amazon Web Services to help build scalable solutions with Amazon S3, Amazon DynamoDB, Amazon Glacier, and more. From versions 4.0.0 to before 4.0.3.3, Customer applications could be configured to improperly route AWS API calls to non-existent or non-AWS hosts. This...

CVE-2026-22611 AWS SDK for .NET V4 adopted defense in depth enhancement for region parameter value

AWS SDK for .NET works with Amazon Web Services to help build scalable solutions with Amazon S3, Amazon DynamoDB, Amazon Glacier, and more. From versions 4.0.0 to before 4.0.3.3, Customer applications could be configured to improperly route AWS API calls to non-existent or non-AWS hosts. This...

CVE-2026-22611

The CVE-2026-22611 issue affects the AWS SDK for .NET (versions 4.0.0 through 4.0.3.2) where the region input field could be set to an invalid value, causing AWS API calls to be routed to non-existent or non‑AWS hosts. A defense‑in‑depth enhancement was added in v4, validating that the region for...