CVE-2026-87557: Google Chrome vulnerability

Q: What does an attacker need before this issue can be exploited?

The attacker must first have compromised the Chrome renderer process. The bypass is then triggered through a crafted HTML page.

Q: Which Chrome versions are affected?

Google Chrome versions prior to 153.0.8010.36 are affected.

Q: What security boundary can be bypassed?

A compromised renderer can bypass system access restrictions through missing authorization in LocalNetworkAccess.

Published Sep 9, 2026

Updated

Missing authorization in LocalNetworkAccess in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Affected Software

1 affected component

Google Chrome<153.0.8010.36

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.0.8010.36

Event History

Sep 9, 2026

CVE Published

via MITRE·12:09 AM

Data Sourced

via MITRE·12:09 AM

DescriptionWeakness

Frequently Asked Questions

What does an attacker need before this issue can be exploited?

The attacker must first have compromised the Chrome renderer process. The bypass is then triggered through a crafted HTML page.

Which Chrome versions are affected?