Chrome Extension Arbitrary Code Execution via Malicious Downloads

Publication date: 2026-06-30

Last updated on: 2026-06-30

Assigner: Chrome

Description

Insufficient validation of untrusted input in Downloads in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted Chrome Extension. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-30

Last Modified

2026-06-30

Generated

2026-07-01

AI Q&A

2026-07-01

EPSS Evaluated

N/A

NVD

CVE-2026-13791

EUVD

EUVD-2026-40477

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	150.0.7871.47

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability involves insufficient validation of untrusted input in the Downloads component of Google Chrome versions prior to 150.0.7871.47. An attacker who convinces a user to install a malicious Chrome extension can exploit this flaw to execute arbitrary code on the user's system via a specially crafted Chrome extension.

Impact Analysis

If exploited, this vulnerability can allow an attacker to execute arbitrary code on your system by tricking you into installing a malicious Chrome extension. This could lead to unauthorized access, data theft, system compromise, or other malicious activities depending on the attacker's intent.

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