What is CVE-2026-11308?

CVE-2026-11308 is a medium-severity vulnerability in Google Chrome, classified under Improper Privilege Management. CVSS score: 6.3/10. Published 2026-06-05.

How severe is CVE-2026-11308?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Privilege escalation in Google Chrome

CVE-2026-11308

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 perform privilege escalation via a crafted Chrome Extension. (Chromium security…

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

Affected products

Google Chrome — versions 149.0.7827.53

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

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

Frequently asked questions

What is CVE-2026-11308?: CVE-2026-11308 is a medium-severity vulnerability in Google Chrome, classified under Improper Privilege Management. CVSS score: 6.3/10. Published 2026-06-05.
How severe is CVE-2026-11308?: Medium severity. CVSS v3 base score is 6.3 out of 10.