Medium severity6.4NVD Advisory· Published Oct 23, 2026· Updated Oct 23, 2026
CVE-2026-115845
CVE-2026-115845
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.
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Affected products
1Patches
Vulnerability mechanics
References
1News mentions
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