Chrome Android WebView Sandbox Escape

Publication date: 2026-06-17

Last updated on: 2026-06-18

Assigner: Chrome

Description

Inappropriate implementation in WebView in Google Chrome on Android prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-17

Last Modified

2026-06-18

Generated

2026-07-08

AI Q&A

2026-06-17

EPSS Evaluated

2026-07-06

NVD

CVE-2026-12438

EUVD

EUVD-2026-37523

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 149.0.7827.155 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

Executive Summary

This vulnerability is an inappropriate implementation in the WebView component of Google Chrome on Android versions prior to 149.0.7827.155. It allows a remote attacker who has already compromised the renderer process to potentially escape the sandbox environment by using a specially crafted HTML page.

Impact Analysis

The vulnerability can have critical impacts as it allows an attacker to escape the sandbox, which is a security mechanism designed to isolate processes. This could lead to the attacker gaining higher privileges, potentially allowing them to execute arbitrary code, access sensitive information, or take control of the affected device.

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