CVE intelligence

CVE-2026-15131

Vulnerability intelligence

Published Jul 8, 2026Sources checked Sep 12, 2026

4.3MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-15131 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

EPSS0.3%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-15131?

Inappropriate implementation in Navigation in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)