CVE-2026-5059

critical · 9.8

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.

9.8

CVSS

1.9%

EPSS (exploit prob.)

79th

EPSS percentile

2026-04-11

Published

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

Weaknesses

CWE-78

References

https://www.zerodayinitiative.com/advisories/ZDI-26-245/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-5059