{"id":"CVE-2026-113302","title":"chromium-browser: chromium-browser: arbitrary code execution via crafted HTML page (CVE-2026-113302)","summary":"A flaw was found in chromium-browser. A remote attacker can exploit a use-after-free issue—where memory is accessed after it has been released—within the Extensions component by convincing a user to visit a specially crafted HTML page. Suc…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":["CWE-416"],"vendor":"Red Hat","product":"Chrome","affected":["Chrome >= 156.0.8078.47 < 156.0.8078.47"],"published":"2026-10-20","updated":"2026-10-21","sourceUpdated":"2026-10-21T02:14:36+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-113302.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-113302.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-113302"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-113302"},{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html"},{"url":"https://issues.chromium.org/issues/500491981"}],"tags":["csaf","vex","red-hat","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-20T23:19:21.502830Z"},"ingestedAt":"2026-10-20T21:19:21.226Z","epss":0.00443,"epssPercentile":0.38337,"slug":"CVE-2026-113302","body":"## Overview\n\nA flaw was found in chromium-browser. A remote attacker can exploit a use-after-free issue—where memory is accessed after it has been released—within the Extensions component by convincing a user to visit a specially crafted HTML page. Successful exploitation allows the attacker to execute arbitrary code inside the browser's restricted sandbox environment.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-113302.json)\n\n**chromium-browser: chromium-browser: arbitrary code execution via crafted HTML page**. Released 2026-10-20, updated 2026-10-21.\n\nNot affected:\n\n- All currently supported Red Hat products\n\n## Remediation\n\nRefer to the advisory for fix availability.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":226171,"id":"CVE-2026-113302","ts":1792539234028,"field":"cvss","old":null,"new":"8.8"},{"seq":226170,"id":"CVE-2026-113302","ts":1792539234028,"field":"severity","old":"none","new":"high"}]}