CVE-2026-93380: Race Condition

Q: What level of attacker access is required to exploit this issue?

The attacker must first have compromised the Chrome renderer process. Exploitation also requires social engineering to get the user to interact with a crafted HTML page.

Q: Which Chrome versions should be remediated?

Google Chrome versions prior to 153.0.8010.52 are affected. Update Chrome to 153.0.8010.52 or later.

Q: What security boundary could exploitation bypass?

Successful exploitation can bypass system access restrictions through a race condition in Chrome's FileSystem component.

Published Sep 17, 2026

Updated

Race condition in FileSystem in Google Chrome prior to 153.0.8010.52 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Affected Software

1 affected component

Google Chrome<153.0.8010.52

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Google Chrome to a version that resolves this vulnerability.
Fixed in 153.0.8010.52

Event History

Sep 17, 2026

CVE Published

via MITRE·09:08 PM

Data Sourced

via MITRE·09:08 PM

DescriptionWeakness

Frequently Asked Questions

What level of attacker access is required to exploit this issue?

The attacker must first have compromised the Chrome renderer process. Exploitation also requires social engineering to get the user to interact with a crafted HTML page.

Which Chrome versions should be remediated?