Main Vulnerability Database Vulnerabilities #VU153650

Missing Authorization in Google Chromium - CVE-2026-106264

Published: October 7, 2026

Vulnerability identifier: #VU153650

CSH Severity: Low

CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-106264

CWE-ID: CWE-862

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to missing authorization checks in Web Authentication (Passkeys & Security Keys) in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and bypass implemented security restrictions.

Affected software

Google Chromium
Google Chrome

How to mitigate CVE-2026-106264

Install update from vendor's website.

Google Chromium - update to 155.0.8059.39
Google Chrome - update to 155.0.8059.39

External References

Related Security Bulletins