Medium severity6.5NVD Advisory· Published Aug 3, 2026· Updated Aug 4, 2026

CVE-2026-18655

Description

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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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Amazon/awslabs.amazon-mq-mcp-serverllm-create
Range: <2.0.24
Awslabs/Mcpllm-create
Range: <2.0.24

Patches

Vulnerability mechanics

References

aws.amazon.com/security/security-bulletins/2026-070-aws/nvd
github.com/awslabs/mcp/security/advisories/GHSA-xwj6-8x5h-hjp6nvd
pypi.org/project/awslabs.amazon-mq-mcp-server/2.0.24/nvd

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