CVE-2026-13021 is a security vulnerability in Google Chrome affecting versions before 149.0.7827.197. The issue stems from an inappropriate implementation in the DeviceBoundSessionCredentials component, which enables a remote attacker to bypass the browser's same origin policy through a specially crafted HTML page. This bypass could potentially allow unauthorized access to resources or data that should be restricted by origin boundaries. The vulnerability is recognized as high severity by Chromium security but lacks detailed CVSS scoring and explicit remediation information in the provided data. The vendor advisory link is available but does not specify patch status or mitigation details.

The vulnerability allows remote attackers to bypass the same origin policy in affected versions of Google Chrome. This could lead to unauthorized access to sensitive information or cross-origin interactions that violate web security boundaries. The exact impact depends on exploitation but is considered high severity by Chromium security standards.

Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0482630350.html for current remediation guidance. No official fix or temporary workaround is explicitly stated in the provided data. Users and administrators should monitor the vendor advisory for updates and apply any forthcoming patches promptly.