Insufficient Input Validation in Chrome for Android Leads to Arbitrary Code Execution

Publication date: 2026-05-28

Last updated on: 2026-05-29

Assigner: Chrome

Description

Insufficient validation of untrusted input in WebAppInstalls in Google Chrome on Android prior to 148.0.7778.216 allowed a local attacker to execute arbitrary code via a malicious file. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-05-28

Last Modified

2026-05-29

Generated

2026-07-09

AI Q&A

2026-05-29

EPSS Evaluated

2026-07-08

NVD

CVE-2026-9987

EUVD

EUVD-2026-33129

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 148.0.7778.216 (exc)

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 WebAppInstalls component of Google Chrome on Android versions prior to 148.0.7778.216. Because of this flaw, a local attacker could execute arbitrary code by using a malicious file.

Impact Analysis

The vulnerability allows a local attacker to execute arbitrary code on the affected device. This could lead to unauthorized actions, data compromise, or control over the device by the attacker.

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