What is CVE-2026-11258?

CVE-2026-11258 is a medium-severity vulnerability in Google Chrome, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-06-05.

How severe is CVE-2026-11258?

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

Vulnerability in Google Chrome

CVE-2026-11258

Inappropriate implementation in File System Access in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass discretionary access control via a crafted HTML page. (Ch…

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-284 — Improper Access Control

References

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

Frequently asked questions

What is CVE-2026-11258?: CVE-2026-11258 is a medium-severity vulnerability in Google Chrome, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-06-05.
How severe is CVE-2026-11258?: Medium severity. CVSS v3 base score is 6.5 out of 10.