GitHub Advisoryadvisory · PyPI

GHSA-fgmx-xfp3-w28p aws-mcp has a Command Injection Remote Code Execution Vulnerability

CRITICAL Published 2026-04-11 Modified 2026-10-27 Official page ↗
Aliases
CVE-2026-5059
Ecosystem
PyPI
Packages
aws-mcp
Severity
Critical
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-78
Reviewed
2026-04-14

Affected packages

• PyPI aws-mcp: <= 1.7.0 (no fix yet)

Description

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.

Related

Alias · CVE (1)

  • CVE-2026-5059 aws-mcp-server AWS CLI Command Injection Remote Code Execution Vulnerability. vulnerability

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References