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VULNERABILITIES

CVE-2026-115845 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: AMZNCVSS-B:6.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://aws.amazon.com/security/security-bulletins/2026-149-aws/ AMZN

Weakness Enumeration

CWE-IDCWE NameSource
CWE-184Incomplete List of Disallowed InputsAMZN

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-115845
NVD Published Date:
Oct 23, 2026
NVD Last Modified:
Nov 2, 2026
Source:
AMZN
CVE-2026-115845 Details - Not Deferred