CVE-2026-100307

high

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.

References

https://github.com/agentic-community/mcp-gateway-registry/security/advisories/GHSA-rxf3-qgpv-wxvr

https://github.com/agentic-community/mcp-gateway-registry/releases/tag/1.25.0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-124009

https://aws.amazon.com/security/security-bulletins/2026-179-aws/

Details

Source: Mitre, NVD

Published: 2026-11-11

Updated: 2026-11-12

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00472