CVE-2026-91748

Received Received - Intake

Race Condition in Google Chrome Extensions on Mac

Publication date: 2026-09-15

Last updated on: 2026-09-16

Assigner: Chrome

Description

Race condition in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via UI Interaction. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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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

CVE-2026-91748

EUVD

EUVD-2026-79964

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 153.0.8010.47 (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 is a race condition vulnerability in Google Chrome's Extensions on Mac. It allows a remote attacker who has already compromised the renderer process to potentially execute arbitrary code outside the sandbox by tricking the user into interacting with the UI.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your system outside Chrome's security sandbox. This could lead to unauthorized access to your data, installation of malware, or further compromise of your device.

Mitigation Strategies

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

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