CVE-2026-17866

Analyzed Analyzed - Analysis Complete

Type Confusion in Google Chrome on Android

Publication date: 2026-07-30

Last updated on: 2026-08-03

Assigner: Chrome

Description

Type Confusion in Tab in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-30

Last Modified

2026-08-03

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-17866

EUVD

EUVD-2026-50615

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.72 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-843	The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Attack-Flow Graph

Executive Summary

This is a type confusion vulnerability in Google Chrome on Android. It occurs when the browser incorrectly handles data types in the Tab component, allowing a remote attacker who has already compromised the renderer process to escape the sandbox security restrictions. This is done by tricking the browser into misinterpreting data types through a specially crafted HTML page.

Detection Guidance

This vulnerability is specific to Google Chrome on Android versions prior to 151.0.7922.72. To detect it, check your Chrome version by opening chrome://version in the browser. If the version is below 151.0.7922.72, the system is vulnerable. Update Chrome to the latest version to mitigate the risk.

Impact Analysis

If exploited, this vulnerability could allow an attacker to escape the browser's sandbox, potentially gaining access to sensitive data or system resources on your device. Since it requires the attacker to first compromise the renderer process, it is typically used as part of a multi-stage attack chain. Users could be impacted if they visit a malicious webpage.

Compliance Impact

This vulnerability is a type confusion issue in Google Chrome on Android that could allow a remote attacker to escape the sandbox via a crafted HTML page. It does not directly impact compliance with standards like GDPR or HIPAA, but such vulnerabilities may increase risks to data confidentiality and integrity, which are key compliance concerns.

Mitigation Strategies

Update Google Chrome on Android to version 151.0.7922.72 or later to address the type confusion vulnerability.

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