{"id":"CVE-2026-121076","published":"2026-11-03T21:17:12.757","lastModified":"2026-11-03T22:19:35.120","description":"Use after free in WebXR in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)","cvssScore":9.6,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cwes":["CWE-416"],"vendors":[],"products":[],"references":[{"url":"https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html","tags":[]},{"url":"https://issues.chromium.org/issues/578670966","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"Use-after-free in Chrome's WebXR component allows remote code execution when a user visits a malicious page, bypassing the sandbox.","exploitability":"Requires social engineering to trick a user into visiting a crafted HTML page; no authentication or special privileges needed.","blast_radius":"Successful exploitation could lead to full system compromise outside Chrome's sandbox, enabling data theft, malware deployment, or lateral movement.","remediation":"Upgrade Google Chrome to version 157.0.8103.38 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["use-after-free","rce","web","sandbox-bypass","chrome","webxr"],"model":"garnet-coder","analyzedAt":"2026-11-04T09:50:40.535Z"}}