Missing Authorization in Google Chromium - CVE-2026-106384
Published: October 6, 2026
Vulnerability identifier: #VU153510
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-106384
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authorization restrictions.
The vulnerability exists due to missing authorization in SiteIsolation when enforcing site isolation restrictions. A remote attacker can perform operations without the required authorization to bypass authorization restrictions.
Affected software
Google Chromium
Google Chrome
Google Chrome
How to mitigate CVE-2026-106384
Install security update from vendor's website.
Google Chromium - update to 155.0.8059.39
Google Chrome - update to 155.0.8059.39
Google Chrome - update to 155.0.8059.39