CVE-2026-3063: High severity Google Chrome vulnerability
Chromium: CVE-2026-3063 Inappropriate implementation in DevTools
Other sources
Inappropriate implementation in DevTools in Google Chrome prior to 145.0.7632.116 allowed an attacker who convinced a user to install a malicious extension to inject scripts or HTML into a privileged page via DevTools. (Chromium security severity: High)
— NVD
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
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-3063?
CVE-2026-3063 has a security severity rating of High as per Chromium's classification.
How do I fix CVE-2026-3063?
To fix CVE-2026-3063, update Google Chrome to version 145.0.7632.116 or later.
What type of attack is possible with CVE-2026-3063?
CVE-2026-3063 allows an attacker to inject scripts or HTML into a privileged page by using a malicious Chrome extension.
Which versions of Google Chrome are affected by CVE-2026-3063?
Google Chrome versions prior to 145.0.7632.116 are affected by CVE-2026-3063.
What is the primary vulnerability mechanism in CVE-2026-3063?
The vulnerability in CVE-2026-3063 is due to an inappropriate implementation in DevTools within Google Chrome.