What is CVE-2026-91720?

CVE-2026-91720 is a medium-severity vulnerability in Google Chrome, classified under Use of Uninitialized Resource. CVSS score: 4.7/10. Published 2026-09-15.

How severe is CVE-2026-91720?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Google Chrome

CVE-2026-91720

Uninitialized resource in ANGLE in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

Affected products

Google Chrome

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

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

Frequently asked questions

What is CVE-2026-91720?: CVE-2026-91720 is a medium-severity vulnerability in Google Chrome, classified under Use of Uninitialized Resource. CVSS score: 4.7/10. Published 2026-09-15.
How severe is CVE-2026-91720?: Medium severity. CVSS v3 base score is 4.7 out of 10.