What is CVE-2026-91746?

CVE-2026-91746 is a medium-severity vulnerability in Google Chrome, classified under Integer Overflow or Wraparound. CVSS score: 4.3/10. Published 2026-09-15.

How severe is CVE-2026-91746?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Integer overflow in Google Chrome

CVE-2026-91746

Integer overflow in Compositing in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Integer Overflow

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Google Chrome

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

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

Frequently asked questions

What is CVE-2026-91746?: CVE-2026-91746 is a medium-severity vulnerability in Google Chrome, classified under Integer Overflow or Wraparound. CVSS score: 4.3/10. Published 2026-09-15.
How severe is CVE-2026-91746?: Medium severity. CVSS v3 base score is 4.3 out of 10.