CVE-2026-9101
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Prototype Pollution in Electron CSV Parser Leads to Command Execution

Publication date: 2026-05-20

Last updated on: 2026-05-20

Assigner: MongoDB, Inc.

Description
Prototype pollution in csv parsing logic during import can lead to untrusted file paths (but not arguments) entering shell.openExternal after specific user behavior leading to "1-click" command execution.
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Meta Information
Published
2026-05-20
Last Modified
2026-05-20
Generated
2026-06-10
AI Q&A
2026-05-20
EPSS Evaluated
2026-06-08
NVD
CVE-2026-9101
EUVD
EUVD-2026-31127
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-1321 The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
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Executive Summary

This vulnerability is a prototype pollution issue in the CSV parsing logic during import. It can cause untrusted file paths to be introduced into the shell.openExternal function after certain user actions, potentially allowing a "1-click" command execution.

Impact Analysis

The vulnerability can lead to unintended command execution with minimal user interaction ("1-click"), which may allow attackers to execute commands on the affected system by exploiting untrusted file paths introduced during CSV import.

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