CVE-2026-17779

Analyzed Analyzed - Analysis Complete

Site Isolation Bypass in Google Chrome

Publication date: 2026-07-30

Last updated on: 2026-08-04

Assigner: Chrome

Description

Inappropriate implementation in Site Isolation in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass site isolation 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

2026-08-04

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-17779

EUVD

EUVD-2026-50728

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.72 (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 Site Isolation in Google Chrome versions before 151.0.7922.72. It allows a remote attacker to bypass site isolation through a crafted HTML page, potentially enabling unauthorized access to data across different sites.

Detection Guidance

This vulnerability is specific to Google Chrome's Site Isolation feature and requires checking the Chrome version. Run chrome://version/ in Chrome to verify your version is 151.0.7922.72 or later. If not, update Chrome immediately.

Impact Analysis

If exploited, this vulnerability could allow an attacker to access sensitive data from other websites you are visiting, such as cookies, session tokens, or personal information. This could lead to identity theft, unauthorized account access, or data breaches.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR's data protection principles or HIPAA's safeguards for protected health information. Organizations may face compliance penalties if user data is compromised due to this issue.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.72 or later to address the vulnerability.

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