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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.

PUBLISHED Reserved 2026-03-27 | Published 2026-04-11 | Updated 2026-04-13 | Assigner zdi




CRITICAL: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

Default status
unknown

1.3.0
affected

References

www.zerodayinitiative.com/advisories/ZDI-26-246/ (ZDI-26-246)

cve.org (CVE-2026-5058)

nvd.nist.gov (CVE-2026-5058)

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