CVE-2026-3919: High Use after free in Extensions.
Chromium: CVE-2026-3919 Use after free in Extensions
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Use after free in Extensions in Google Chrome prior to 146.0.7680.71 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
— NVD
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-3919?
The severity of CVE-2026-3919 is classified as High.
How do I fix CVE-2026-3919?
To fix CVE-2026-3919, update Google Chrome to version 146.0.7680.71 or later.
What causes CVE-2026-3919?
CVE-2026-3919 is caused by a use after free vulnerability in Extensions in Google Chrome.
Who is affected by CVE-2026-3919?
Users of Google Chrome versions prior to 146.0.7680.71 are affected by CVE-2026-3919.
What can an attacker do with CVE-2026-3919?
An attacker could potentially exploit heap corruption via a crafted HTML page if the user installs a malicious extension.