{"id":"CVE-2026-18655","state":"PUBLISHED","title":"Broker Credential and OAuth Token Disclosure in AWS Labs Amazon MQ MCP Server via Prompt Injection","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.\n\n\n\nTo remediate this issue, users should upgrade to version 2.0.24.","publishedAt":"2026-08-03T19:04:12.505Z","updatedAt":"2026-08-03T19:52:25.587Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","source":"AMZN"},"assigner":"AMZN","products":["AWS 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