Skip to content
OpenAdvisories
High · 8.8 CVE-2026-100307 EUVD-2026-124009

Missing authorization on the external management API in mcp-gateway-registry enables privilege escalation to registry administrator

Published Nov 11, 2026 · Assigned by AMZN

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.

Affected products

VendorProductAffectedFixed
AWS mcp-gateway-registry 1.0.9 – ≤ 1.24.7 —

References