CVE-2026-115845

An incomplete list of disallowed inputs in the Python code validator of the run_script tool in AWS MCP Server might allow an authenticated remote user to execute arbitrary code within their own isolated session environment via a crafted script. AWS fixed this issue service-side. No customer action is required.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-149-aws/

Configurations

No configuration.

History

23 Oct 2026, 19:23

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-23 19:17

Updated : 2026-10-23 19:23

NVD link : CVE-2026-115845

Mitre link : CVE-2026-115845

CVE.ORG link : CVE-2026-115845

JSON object : View

Products Affected

No product.

CWE

CWE-184

Incomplete List of Disallowed Inputs

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