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 notification is related to the use of specific values for the region input field when calling AWS services. An actor with access to the environment in which the SDK is used could set the region input field to an invalid value. This issue has been patched in version 4.0.3.3.
Metrics
Affected Vendors & Products
References
History
Mon, 12 Jan 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 12 Jan 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Amazon
Amazon aws Sdk Net |
|
| Vendors & Products |
Amazon
Amazon aws Sdk Net |
Sat, 10 Jan 2026 05:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 notification is related to the use of specific values for the region input field when calling AWS services. An actor with access to the environment in which the SDK is used could set the region input field to an invalid value. This issue has been patched in version 4.0.3.3. | |
| Title | AWS SDK for .NET V4 adopted defense in depth enhancement for region parameter value | |
| Weaknesses | CWE-20 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-01-10T05:37:08.297Z
Updated: 2026-01-12T14:39:57.770Z
Reserved: 2026-01-07T21:50:39.534Z
Link: CVE-2026-22611
Updated: 2026-01-12T14:39:55.096Z
Status : Awaiting Analysis
Published: 2026-01-10T06:15:51.270
Modified: 2026-01-13T14:03:18.990
Link: CVE-2026-22611
No data.