{"id":"CVE-2026-106271","published":"2026-10-06T19:17:54.677","lastModified":"2026-10-08T18:03:58.367","description":"Missing authorization in Workers 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 PDF file. (Chromium security severity: Medium)","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwes":["CWE-862"],"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/553118313","tags":["Permissions Required"]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A missing authorization check in Chrome's Workers feature allowed attackers who already compromised the renderer process to bypass site isolation when processing crafted PDF files. This creates a path for privilege escalation and cross-site data access.","exploitability":"Exploitation requires an initial compromise of the renderer process, making it moderately difficult but possible with a successful PDF-based attack vector.","blast_radius":"If exploited, this flaw could allow attackers to access data from other websites, potentially leading to credential theft, session hijacking, or sensitive data exposure across multiple sites.","remediation":"Upgrade to Chrome 155.0.8059.39 or later","detection":"No reliable host or network indicator is derivable from the published description.","tags":["authorization","pdf","browser"],"model":"garnet-coder","analyzedAt":"2026-10-14T08:58:25.972Z"}}