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Critical · 9.8 CVE-2026-5058 EUVD-2026-21655GHSA-fjwc-hc62-p8h9

aws-mcp-server Command Injection Remote Code Execution Vulnerability

Published Apr 11, 2026 · Updated Apr 13, 2026 · Assigned by zdi

Description

aws-mcp-server Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of aws-mcp-server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of the allowed commands list. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the MCP server. Was ZDI-CAN-27968.

Affected products

VendorProductAffectedFixed
aws-mcp-server aws-mcp-server 1.3.0 —

References