aws-mcp has a Command Injection Remote Code Execution Vulnerability

CRITICAL 9.8CVE-2026-5059 · GHSA-fgmx-xfp3-w28p · PYSEC-2026-288 · Published 11/04/2026 · updated 17/06/2026

Package	Affected versions	Patched versions
aws-mcp PyPI	`≤ 1.7.0`	No fix yet

Description

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.

NVD 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.

References

nvd.nist.gov/vuln/detail/CVE-2026-5059 · ADVISORY
alexei-led/aws-mcp-server · PACKAGE
pypa/advisory-database · WEB
pypi.org/project/aws-mcp · WEB
zerodayinitiative.com/advisories/ZDI-26-245 · WEB
zerodayinitiative.com/advisories/ZDI-26-245
GitHub Advisory GHSA-fgmx-xfp3-w28p · ADVISORY

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Package

Affected versions

Patched versions

aws-mcp

PyPI

≤ 1.7.0

No fix yet

Description

NVD description