{"id":"CVE-2026-121036","published":"2026-11-03T21:17:06.863","lastModified":"2026-11-03T22:19:32.603","description":"Use after free in CSS in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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/577378379","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A use-after-free vulnerability in Google Chrome's CSS engine allowed remote attackers to execute arbitrary code inside the sandbox by tricking a user into visiting a crafted HTML page.","exploitability":"Exploitation requires user interaction (e.g., visiting a malicious webpage) and precise memory manipulation, making it moderately difficult but feasible for skilled attackers.","blast_radius":"Successful exploitation could lead to full compromise of the sandboxed Chrome process, enabling data theft, malware delivery, or lateral movement within the user's environment.","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","sandbox-escape","web-exploit","chromium"],"model":"garnet-coder","analyzedAt":"2026-11-04T09:58:21.959Z"}}