CVE intelligence

CVE-2026-11309

Vulnerability intelligence

Published Jun 5, 2026Sources checked Sep 28, 2026

4.3MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-11309 and is rated Medium severity with a CVSS score of 4.3. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.1%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-11309?

Insufficient policy enforcement in History in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)