This vulnerability involves a heap buffer overflow in the ANGLE graphics abstraction layer within Google Chrome on Mac platforms before version 148.0.7778.168. Exploitation could enable a remote attacker to perform a sandbox escape by using a specially crafted HTML page. The issue was publicly disclosed on May 14, 2026, and is recognized as a high-severity security flaw by Chromium's security team. Although no CVSS score is available, the vulnerability's nature and potential impact justify a high severity rating. Google has released a stable channel update to remediate this vulnerability.

Successful exploitation of this heap buffer overflow could allow a remote attacker to escape the Chrome sandbox on Mac systems, potentially leading to execution of arbitrary code with elevated privileges outside the browser's restricted environment. This increases the risk of system compromise if an attacker can lure a user to a maliciously crafted HTML page. No known exploits in the wild have been reported so far.

Google has released a stable channel update for Chrome version 148.0.7778.168 that addresses this vulnerability. Users and administrators should apply this update promptly to mitigate the risk. Since this is not a cloud service, remediation depends on updating the affected Chrome installations. Patch status is confirmed by the vendor advisory linked in the input data.