What is CVE-2026-11048?

CVE-2026-11048 is a medium-severity vulnerability in Google Chrome, classified under Origin Validation Error. CVSS score: 6.5/10. Published 2026-06-04.

How severe is CVE-2026-11048?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Google Chrome

CVE-2026-11048

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to bypass same origin policy via a crafted Chrome Extension. (Chromium security se…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Google Chrome — versions 149.0.7827.53

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

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

Frequently asked questions

What is CVE-2026-11048?: CVE-2026-11048 is a medium-severity vulnerability in Google Chrome, classified under Origin Validation Error. CVSS score: 6.5/10. Published 2026-06-04.
How severe is CVE-2026-11048?: Medium severity. CVSS v3 base score is 6.5 out of 10.