Spoofing attack in Google Chromium - CVE-2026-8561
Published: May 14, 2026
Vulnerability identifier: #VU131517
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-8561
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Google Chromium
Google Chromium
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a spoofing attack.
The vulnerability exists due to insufficient validation of user-supplied input in Fullscreen in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and spoof web page content.
How to mitigate CVE-2026-8561
Install update from vendor's website.