CVE-2026-78991

Analyzed Analyzed - Analysis Complete

Race Condition in Google Chrome WebProtect

Publication date: 2026-08-25

Last updated on: 2026-08-27

Assigner: Chrome

Description

Race condition in WebProtect in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to obtain sensitive information 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

2026-08-27

Generated

2026-09-15

AI Q&A

2026-08-26

EPSS Evaluated

2026-09-13

NVD

CVE-2026-78991

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-367	The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Attack-Flow Graph

Executive Summary

This vulnerability is a race condition in WebProtect within Google Chrome before version 152.0.7977.65. A race condition occurs when a system's performance is dependent on the sequence or timing of uncontrollable events. In this case, an attacker who has already compromised the renderer process could exploit this flaw to access sensitive information through a specially crafted HTML page.

Impact Analysis

If you are using an affected version of Google Chrome, an attacker who gains control of the renderer process could potentially steal sensitive data from your browser sessions. This could include personal information, login credentials, or other confidential data processed by the browser.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, which may violate compliance requirements under GDPR and HIPAA. Organizations using affected Chrome versions might face data breaches, resulting in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the race condition in WebProtect.

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