Type Confusion in Google Chromium - CVE-2026-91715
Published: September 16, 2026
Vulnerability identifier: #VU150144
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-91715
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error within the ServiceWorker component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Google Chromium
Google Chrome
Debian Linux
Chrome OS
chromium (Debian package)
Google Chrome
Debian Linux
Chrome OS
chromium (Debian package)
How to mitigate CVE-2026-91715
Install update from vendor's website.
Google Chromium - update to 153.0.8010.47
Google Chrome - update to 153.0.8010.47
Chrome OS - update to 150.0.7871.287
chromium (Debian package) - update to 153.0.8010.47-2~deb13u1
Google Chrome - update to 153.0.8010.47
Chrome OS - update to 150.0.7871.287
chromium (Debian package) - update to 153.0.8010.47-2~deb13u1