CVE-2026-100307
Received
Received - Intake
Missing Authorization in Amazon mcp-gateway-registry
Vulnerability report for CVE-2026-100307, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-11
Last updated on: 2026-11-11
Assigner: AMZN
Description
Description
Missing authorization in the external management API in Amazon mcp-gateway-registry 1.0.9 through 1.24.7 might allow an authenticated remote user to assign the registry administrator scope to their own identity group and obtain administrative control of every registered gateway asset via a crafted group import request.
To remediate this issue, users should upgrade to version 1.25.0.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| AWS | mcp-gateway-registry | From 1.0.9 (inc) to 1.24.7 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-862 | The product does not perform an authorization check when an actor attempts to access a resource or perform an action. |
| CWE-266 | A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor. |
