Low severity3.7NVD Advisory· Published Jan 10, 2026· Updated Apr 15, 2026

CVE-2026-22611

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
AWSSDK.CoreNuGet	>= 4.0.0, < 4.0.3.3	4.0.3.3

Affected products

ghsa-coords
pkg:nuget/awssdk.core
Range: >= 4.0.0, < 4.0.3.3

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-9cvc-h2w8-phrpghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-22611ghsaADVISORY
github.com/aws/aws-sdk-net/security/advisories/GHSA-9cvc-h2w8-phrpnvdWEB

News mentions

No linked articles in our index yet.

cvss	0.240
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000