CVE-2026-13864 Privilege escalation in Chrome

High 8.1 Published Updated

An attacker can escalate privileges by tricking a user into installing a malicious Chrome extension that exploits insufficient WebHID policy enforcement.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-13864?

CVE-2026-13864 is a high-severity vulnerability in Google Chrome, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Insufficient policy enforcement in WebHID in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to perform privilege escalation via a crafted Chrome Extension. (Chromium security severity: Medium)

Weakness: CWE-284

Which versions are affected by CVE-2026-13864?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-13864?

Upgrade to a fixed version.

Is CVE-2026-13864 being exploited?

There is no known exploitation of CVE-2026-13864 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-13864, ECHO-ea67-bb13-9b47, GHSA-hwcm-f47f-gx33, MINI-mqrg-2hhv-x2vv.

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