PYSEC-2026-288

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/aws-mcp/PYSEC-2026-288.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-288
Aliases
Published
2026-06-29T11:50:47.676407Z
Modified
2026-07-01T20:22:49.598545Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
aws-mcp has a Command Injection Remote Code Execution Vulnerability
Details

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

Affected packages

PyPI / aws-mcp

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
1.7.0

Affected versions

1.*
1.5.4
1.5.5
1.5.6
1.6.0
1.7.0

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/aws-mcp/PYSEC-2026-288.yaml"