Improper access control in Google Chromium - CVE-2026-11206
Published: June 8, 2026
Vulnerability identifier: #VU133803
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-11206
CWE-ID: CWE-284
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 improper access restrictions in ServiceWorker. A remote attacker can create a specially crafted web page, trick the victim into visiting it, bypass implemented security restrictions and gain unauthorized access to sensitive information.
Affected software
Google Chromium
Microsoft Edge
Google Chrome
Debian Linux
chromium (Debian package)
Microsoft Edge
Google Chrome
Debian Linux
chromium (Debian package)
How to mitigate CVE-2026-11206
Install update from vendor's website.
Google Chromium - update to 149.0.7827.53
Microsoft Edge - update to 149.0.4022.52
Google Chrome - update to 149.0.7827.53
chromium (Debian package) - addressed in versions 149.0.7827.53-1~deb12u1, 149.0.7827.53-1~deb13u1
Microsoft Edge - update to 149.0.4022.52
Google Chrome - update to 149.0.7827.53
chromium (Debian package) - addressed in versions 149.0.7827.53-1~deb12u1, 149.0.7827.53-1~deb13u1