JavaScript SDK v2 users should add validation to the region parameter value in or migrate to v3
CVSSv3.1 Rating: 3.7 (LOW)
Summary 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. Per the AWS shared responsibility model, customer applications should protect instances appropriately, or implement proper input sanitization checks. The AWS SDK for JavaScript v2 reached end-of-support on September 8, 2025, but a defense-in-depth enhancement has been implemented in AWS SDK for JavaScript v3. Please migrate to that version.
Impact Customer applications could be configured to improperly route AWS API calls to non-existent or non-AWS hosts. While the SDK itself is functioning as designed, we recommend customers migrate to AWS SDK for JavaScript v3 for continued support and enhanced security features.
Impacted versions: All versions of AWS SDK for JavaScript v2
Patches No security patch is required, this is an informational advisory.
Workarounds
- Implement proper input sanitization in your application code
- Migrate to AWS SDK for JavaScript v3
- Follow AWS security best practices for SDK configuration
References Contact AWS Security via the vulnerability reporting page or email aws-security@amazon.com.
Acknowledgement AWS Security thanks Guy Arazi for bringing these customer security considerations to our attention through the coordinated disclosure process.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | aws-sdk | >= 2.0.0, <= 3.0.0 | no fix |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-20- Platform
- npm
- Package
aws-sdk- Disclosed
- 08.01.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-j965-2qgj-vjmq - CC BY 4.0
Vulnerability history: aws-sdk
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 11.2021 01.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Low 1
Disclosures per year
- 2021: 1
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 1
-
JavaScript SDK v2 users should add validation to the region parameter value in or migrate to v3 this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.