All vulnerabilities
CVE-2026-5059GHSA-fgmx-xfp3-w28pPYSEC-2026-288

aws-mcp has a Command Injection Remote Code Execution Vulnerability

aws-mcp-server aws-mcppipContainers & cloud
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)1.91%Chance of exploitation activity in the next 30 days, higher than 79% of CVEs. Scored 27 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published11 Apr 2026Updated 27 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from GitHub Advisory Database

Affected versions 8

  • aws-mcp, pip<= 1.7.0GitHub
  • aws-mcp-serveraffected: 1.3.0CVE List
  • aws-mcp, PyPIfrom first release, through 1.7.0OSV
  • aws-mcp, PyPI1.5.4OSV
  • aws-mcp, PyPI1.5.5OSV
  • aws-mcp, PyPI1.5.6OSV
  • aws-mcp, PyPI1.6.0OSV
  • aws-mcp, PyPI1.7.0OSV

References 6