{"id":"CVE-2026-106403","published":"2026-10-06T19:18:09.843","lastModified":"2026-10-09T15:56:35.053","description":"Incorrect authorization in Accessibility in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","cwes":["CWE-863"],"vendors":["google"],"products":["chrome"],"references":[{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","tags":["Release Notes","Vendor Advisory"]},{"url":"https://issues.chromium.org/issues/523601696","tags":["Permissions Required"]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"Chrome's accessibility feature had incorrect authorization checks that allowed a compromised renderer process to bypass site isolation and gain access to other origins. This creates a path for attackers to escape from sandboxed pages and access data from different websites.","exploitability":"Exploitation requires compromising a renderer process first, then crafting a malicious HTML page that triggers the authorization bypass, making it moderately difficult but possible with a multi-stage attack approach.","blast_radius":"If exploited, this vulnerability could allow attackers to access sensitive data from other websites, potentially leading to cross-site data theft and session hijacking across multiple domains.","remediation":"Upgrade to Chrome version 155.0.8059.39 or later to remediate this authorization bypass vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["authorization","accessibility","browser"],"model":"garnet-coder","analyzedAt":"2026-10-14T08:58:16.120Z"}}