CVE-2026-9680
Received Received - Intake

Improper MCP Server Exposure in Alibaba Cloud RDS OpenAPI MCP Server

Publication date: 2026-07-28

Last updated on: 2026-07-28

Assigner: Alibaba, Inc.

Description
Improper exposure of the MCP server in alibabacloud-rds-openapi-mcp-server allows remote attackers to invoke exposed MCP tools via network access to an MCP endpoint listening on all network interfaces by default.

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Meta Information

Published
2026-07-28
Last Modified
2026-07-28
Generated
2026-07-28
AI Q&A
2026-07-28
EPSS Evaluated
N/A
NVD
CVE-2026-9680
EUVD
EUVD-2026-49727

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
alibaba alibabacloud_rds_openapi_mcp_server *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-1188 The product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure.

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Executive Summary

This vulnerability involves improper exposure of the MCP server in alibabacloud-rds-openapi-mcp-server. The server's endpoint is configured to listen on all network interfaces by default, allowing remote attackers to invoke exposed MCP tools via network access. This can lead to unauthorized use of cloud credentials and RDS management tools.

Detection Guidance

Check if the MCP server is listening on non-loopback interfaces by running netstat -tulnp | grep mcp-server or ss -tulnp | grep mcp-server. Verify if the server is bound to 0.0.0.0 instead of 127.0.0.1. Inspect configuration files for improper exposure settings.

Impact Analysis

Attackers could exploit this to invoke Alibaba Cloud RDS OpenAPI tools, potentially accessing sensitive data, creating or deleting RDS instances, or executing SQL commands. This may result in data breaches, service disruption, or unauthorized resource consumption.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR and HIPAA requirements for data protection and access controls. Non-compliance may result in legal penalties and reputational damage.

Mitigation Strategies

Restrict the MCP server to the loopback interface (127.0.0.1) in configuration. Enable API key authentication for all endpoints. Disable write-capable tools if not required. Implement network access controls to block external access. Regularly audit credentials and server configurations.

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