VULNERABILITY INTELLIGENCE
CVE-2026-9891
CVSS score9 CRITICAL
EPSS probability0.24%
CISA KEVNot currently listed
Published2026-05-28
Last modified2026-07-21
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
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)
Weakness classification
- CWE-416: Use After Free
Primary references
- chrome-cve-admin@google.com — Release Notes, Vendor Advisory
- chrome-cve-admin@google.com — Permissions Required