CVE-2026-17815

Analyzed Analyzed - Analysis Complete

Insufficient Policy Enforcement in GuestView in Google Chrome

Publication date: 2026-07-30

Last updated on: 2026-08-03

Assigner: Chrome

Description

Insufficient policy enforcement in GuestView in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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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-2026-17815

EUVD

EUVD-2026-50764

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-346	The product does not properly verify that the source of data or communication is valid.

Attack-Flow Graph

Executive Summary

This vulnerability is due to insufficient policy enforcement in GuestView in Google Chrome before version 151.0.7922.72. A remote attacker could exploit it by using a crafted HTML page to leak cross-origin data, meaning data from one website could be accessed by another site despite security restrictions.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 151.0.7922.72. To detect it, check your Chrome version by running chrome --version or chrome://version in the browser. If your version is below 151.0.7922.72, the system is vulnerable.

Impact Analysis

If you use an affected version of Google Chrome, a malicious website could potentially access sensitive data from other sites you visit, such as login credentials, personal information, or browsing history. This could lead to privacy breaches or identity theft.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate GDPR's data protection principles or HIPAA's requirements for safeguarding protected health information. Organizations using affected Chrome versions may face compliance risks and potential penalties.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.72 or later to address the insufficient policy enforcement in GuestView.

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