Uninitialized Use in WebGL in Google Chrome on Android

Publication date: 2026-05-28

Last updated on: 2026-06-01

Assigner: Chrome

Description

Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin information via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-28

Last Modified

2026-06-01

Generated

2026-07-09

AI Q&A

2026-05-29

EPSS Evaluated

2026-07-08

NVD

CVE-2026-9921

EUVD

EUVD-2026-33216

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-457	The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

Attack-Flow Graph

Executive Summary

This vulnerability is an uninitialized use issue in the WebGL component of Google Chrome on Android versions prior to 148.0.7778.216. It allows a remote attacker to leak cross-origin information by tricking a user into visiting a specially crafted HTML page.

Impact Analysis

The vulnerability can lead to unauthorized disclosure of information from other origins, potentially exposing sensitive data that should be isolated by the browser's security model. This could compromise user privacy and security by leaking data across different websites.

Hi! I’m here to help you understand CVE-2026-9921. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70