PT-2026-67485 · Aws · Amazon-Mq-Mcp-Server

CVE-2026-18655 · Published 2026-08-03 · Updated 2026-08-03

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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.

Fix

Weakness Enumeration

CWE-923

Related Identifiers

CVE-2026-18655

Affected Products

Amazon-Mq-Mcp-Server

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-18655 · Security Note
• https://pypi.org/project/awslabs.amazon-mq-mcp-server/2.0.24 · Patch
• https://aws.amazon.com/security/security-bulletins/2026-070-aws · Vendor Advisory
• https://github.com/awslabs/mcp/security/advisories/GHSA-xwj6-8x5h-hjp6 · Note