CVE-2026-100307

HighCVSS 8.8/10Last modified Nov 12, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-266 CWE-862

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
AWS	mcp-gateway-registry	>= 1.0.9, <= 1.24.7

References

Timeline

Published: Nov 11, 2026
Last modified: Nov 12, 2026
NVD status: Awaiting Analysis

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