CVE-2026-18655 in Amazon MQ MCP Serverinfo

Summary

by MITRE • 08/03/2026

Improper restriction of intended endpoints in the RabbitMQ broker connection tools of the Amazon MQ MCP Server (awslabs.amazon-mq-mcp-server) before 2.0.24 may allow a remote unauthenticated actor (via prompt injection) to obtain Amazon MQ for RabbitMQ broker credentials or OAuth access tokens sent to a crafted endpoint controlled through a broker hostname introduced in the MCP client context.



To remediate this issue, users should upgrade to version 2.0.24.

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An in-depth analysis is available in our curated vulnerability entry.

Responsible

AMZN

Reservation

08/03/2026

Disclosure

08/03/2026

Moderation

accepted

CPE

ready

EPSS

0.00000

KEV

no

Activities

low

Sector

Police, Telecommunication, ...

Sources

MITREhttps://www.cve.org/CVERecord?id=CVE-2026-18655
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-18655
CVE Detailshttps://www.cvedetails.com/cve/CVE-2026-18655/

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