CVE-2026-79031

Analyzed Analyzed - Analysis Complete

Improper Resource Exposure in Google Chrome

Publication date: 2026-08-25

Last updated on: 2026-08-28

Assigner: Chrome

Description

Improper resource exposure in Preload in Google Chrome prior to 152.0.7977.65 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

2026-08-25

Last Modified

2026-08-28

Generated

2026-09-15

AI Q&A

2026-08-26

EPSS Evaluated

2026-09-13

NVD

CVE-2026-79031

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 152.0.7977.65 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-668	The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper resource exposure in Google Chrome's Preload feature. It allows a remote attacker to bypass site isolation through a crafted HTML page, potentially accessing resources they should not be able to.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 152.0.7977.65. Detection involves checking the installed Chrome version. On Windows, run: chrome://settings/help. On Linux, check via terminal: google-chrome --version. If the version is below 152.0.7977.65, the system is vulnerable.

Impact Analysis

An attacker could exploit this to access sensitive data from other sites, leading to privacy breaches or unauthorized actions on your behalf if you visit a malicious page.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR's data protection principles or HIPAA's patient privacy requirements if exploited in healthcare contexts.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the improper resource exposure in Preload.

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