What is CVE-2026-11063?

CVE-2026-11063 is a critical-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 9.6/10. Published 2026-06-04.

How severe is CVE-2026-11063?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Improper input validation in Google Chrome

CVE-2026-11063

Insufficient validation of untrusted input in WebNN in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chr…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Google Chrome — versions 149.0.7827.53

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

chrome-cve-admin@google.com
chrome-cve-admin@google.com

Frequently asked questions

What is CVE-2026-11063?: CVE-2026-11063 is a critical-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 9.6/10. Published 2026-06-04.
How severe is CVE-2026-11063?: Critical severity. CVSS v3 base score is 9.6 out of 10.