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CVE-2026-5059

CRITICAL CVSS 3.0: 9.8 EPSS 1.71%
Updated Apr 11, 2026
aws-mcp-server
Parameter Value
CVSS 9.8 (CRITICAL)
Type CWE-78 (OS Command Injection)
Vendor aws-mcp-server
Public PoC No

aws-mcp-server AWS CLI 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-27969.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.0

Weakness Type (CWE)