HIGH 7.1 NVD
CVE-2026-18655
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
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.
References
- https://aws.amazon.com/security/security-bulletins/2026-070-aws/
- https://github.com/awslabs/mcp/security/advisories/GHSA-xwj6-8x5h-hjp6
- https://pypi.org/project/awslabs.amazon-mq-mcp-server/2.0.24/
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-08-03 via NVD.
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