CVE-2026-22611

Published Jan 10, 2026

Last updated 9 days ago

CVSS low 3.7
AWS

Overview

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.
Source
security-advisories@github.com
NVD status
Deferred

Risk scores

CVSS 3.1

Type
Secondary
Base score
3.7
Impact score
1.4
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Severity
LOW

Weaknesses

security-advisories@github.com
CWE-20

Social media

Hype score
Not currently trending

Related CVEs

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References

Sources include official advisories and independent security research.