Google · Google Chrome · CVE-2021-4321
**Name of the Vulnerable Software and Affected Versions**
Google Chrome versions prior to 91.0.4472.77
**Description**
The issue exists due to insufficient input validation in the Blink rendering engine of Google Chrome, allowing a remote attacker to bypass existing security restrictions. This can be achieved via a crafted HTML page, enabling the attacker to bypass content security policy. The estimated number of potentially affected devices and details about real-world incidents are not specified.
**Recommendations**
For versions prior to 91.0.4472.77, update to version 91.0.4472.77 or later to resolve the issue. As a temporary workaround, consider restricting access to crafted HTML pages that could exploit this issue until a patch is applied. Avoid using the vulnerable Blink rendering engine for sensitive operations until the update is installed.