CVE-2026-91743
Received Received - Intake

Race Condition in Google Chrome Allows Code Execution

Vulnerability report for CVE-2026-91743, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-15

Last updated on: 2026-09-16

Assigner: Chrome

Description

Race condition in Core in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

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Meta Information

Published
2026-09-15
Last Modified
2026-09-16
Generated
2026-10-06
AI Q&A
2026-09-16
EPSS Evaluated
2026-10-04
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google chrome 153.0.8010.47

Helpful Resources

Exploitability

CWE
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KEV
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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

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Executive Summary

This is a race condition vulnerability in Google Chrome's Core component. It allows a remote attacker who has already compromised the renderer process to potentially execute arbitrary code outside the Chrome sandbox by tricking a user into visiting a specially crafted HTML page. The sandbox is a security feature meant to isolate processes and limit damage from attacks.

Impact Analysis

If you use an affected version of Chrome, an attacker could exploit this to run malicious code on your computer, bypassing Chrome's built-in security protections. This could lead to data theft, installation of malware, or complete system compromise. The attacker would need to first compromise the renderer process, which is typically harder than exploiting this vulnerability directly.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, which may violate GDPR's data protection requirements or HIPAA's security rules for protected health information. Organizations using vulnerable Chrome versions may face compliance violations if an exploit leads to data breaches, potentially resulting in fines or legal consequences.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.47 or later to address the race condition vulnerability.

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