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 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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.1
- CVSS 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
- EPSS probability
- 0.25%
- CWE
- CWE-923
- Published
- 2026-08-03
- Last modified
- 2026-08-03
Affected products
- AWS amazon-mq-mcp-server
Weakness type
Related vulnerabilities
- CVE-2026-87734 — An issue was discovered in the utcp package before 0.0.6 for OCaml. Out-of-order segment reassembly...
- CVE-2026-62836 — Azure SQL Managed Instance Elevation of Privilege Vulnerability
- CVE-2026-23904 — Apache Kyuubi: Unrestricted access via Kyuubi engine-ui proxy
- CVE-2026-63226 — Printers and Multifunction Printers (MFPs) provided by Ricoh Company, Ltd. do not implement...
- CVE-2026-8920 — Improper Restriction of Communication Channel to Intended Endpoints and External Control of File...
- CVE-2026-59841 — A improper restriction of communication channel to intended endpoints vulnerability in Fortinet...
- CVE-2026-57028 — Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker
- CVE-2026-33803 — Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker