Use-after-free in Google Chromium - CVE-2026-126901
Published: November 12, 2026
Vulnerability identifier: #VU166034
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-2026-126901
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the PDF component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
Google Chromium
Google Chrome
Chrome OS
Google Chrome
Chrome OS
How to mitigate CVE-2026-126901
Install update from vendor's website.
Google Chromium - update to 157.0.8103.78
Google Chrome - update to 157.0.8103.78
Chrome OS - update to 150.0.7871.289
Google Chrome - update to 157.0.8103.78
Chrome OS - update to 150.0.7871.289