CVE-2026-9891

CRITICAL

Google Chrome - Use After Free

Title source: rule
STIX 2.1

Description

Use after free in Extensions in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium security severity: Critical)

Scores

CVSS v3 9.0
EPSS 0.0026
EPSS Percentile 16.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (2)
google/chrome < 148.0.7778.216
Google/Chrome 148.0.7778.216
Published May 28, 2026
Tracked Since May 29, 2026