CVE-2026-11132 describes a vulnerability in Google Chrome's Paint component where insufficient enforcement of the same origin policy allows a remote attacker to bypass this security control using a crafted HTML page. This affects Chrome versions prior to 149.0.7827.53. The same origin policy is a critical security mechanism that restricts how documents or scripts loaded from one origin can interact with resources from another origin. Bypassing this policy can lead to unauthorized access to sensitive information or cross-origin attacks. The vulnerability is classified with medium severity by Chromium security. No CVSS score is provided, and no known exploits have been reported. The vendor advisory linked is a stable channel update announcement but does not explicitly state patch details for this vulnerability.

The impact of this vulnerability is a potential bypass of the same origin policy, which could allow a remote attacker to access or manipulate web content across origins that should be isolated. This could lead to unauthorized data access or cross-origin attacks. However, no known exploits in the wild have been reported, and the severity is rated medium by Chromium security.

Users should ensure they are running Google Chrome version 149.0.7827.53 or later, as this version addresses the vulnerability. The vendor advisory linked is a stable channel update announcement; users should apply the latest stable updates from Google Chrome to remediate this issue. Patch status is not explicitly confirmed in the advisory, so users should verify update installation. No additional mitigation steps are indicated by the vendor.