{"id":"CVE-2026-121126","published":"2026-11-03T21:17:20.860","lastModified":"2026-11-04T05:18:34.150","description":"Use after free in Core in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)","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/571284308","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A use-after-free vulnerability in Google Chrome's Core component allowed remote attackers to execute arbitrary code outside the sandbox by tricking a user into visiting a crafted HTML page.","exploitability":"Exploitation requires social engineering (user interaction) to load a malicious HTML page; no authentication or special privileges are needed.","blast_radius":"Successful exploitation could lead to full system compromise via sandbox escape, enabling attackers to steal data, install malware, or pivot laterally.","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","sandbox-escape","rce","web"],"model":"garnet-coder","analyzedAt":"2026-11-04T09:51:31.471Z"}}