CVE-2026-22611

LOW

3.7

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.

CVE Details

CVSS v3.1 Score3.7

SeverityLOW

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published1/10/2026

Last Modified1/13/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-20

References

https://github.com/aws/aws-sdk-net/security/advisories/GHSA-9cvc-h2w8-phrp(security-advisories@github.com)

IOC Correlations

No correlations recorded

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