alexei-led/aws-mcp-server · Security
aws-mcp has a Command Injection Remote Code Execution Vulnerability
- GHSA ID
- GHSA-fgmx-xfp3-w28p
- CVE ID
- CVE-2026-5059
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
CWEs
- CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')