Improperly implemented security check for standard in Google Chromium - CVE-2026-11270
Published: June 8, 2026
Vulnerability identifier: #VU133860
CSH Severity: Low
CVSS v4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-11270
CWE-ID: CWE-358
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect implementation in UI in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain 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-2026-11270
Install update from vendor's website.
Google Chromium - update to 149.0.7827.53
Microsoft Edge - update to 149.0.4022.53
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 149.0.4022.53
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