{"id":"CVE-2026-113207","title":"chromium-browser: chromium-browser: Use after free in SiteIsolation (CVE-2026-113207)","summary":"An use after free flaw was found in the SiteIsolation component of the Chromium browser.\n\nUpstream bug(s):\n\nhttps://code.google.com/p/chromium/issues/detail?id=511806651\nhttps://code.google.com/p/chromium/issues/detail?id=113207","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":"2026-10-21T00:02:03+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-113207.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-113207.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-113207"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-113207"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113207"},{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html"},{"url":"https://issues.chromium.org/issues/511806651"}],"tags":["csaf","vex","red-hat","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-20T23:14:39.107243Z"},"ingestedAt":"2026-10-20T21:19:21.217Z","slug":"CVE-2026-113207","body":"## Overview\n\nAn use after free flaw was found in the SiteIsolation component of the Chromium browser.\n\nUpstream bug(s):\n\nhttps://code.google.com/p/chromium/issues/detail?id=511806651\nhttps://code.google.com/p/chromium/issues/detail?id=113207\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-2026-113207.json)\n\n**chromium-browser: chromium-browser: Use after free in SiteIsolation**. 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,"exploitation":0,"ransomware":0},"changes":[{"seq":226217,"id":"CVE-2026-113207","ts":1792539246026,"field":"cvss","old":null,"new":"8.8"},{"seq":226216,"id":"CVE-2026-113207","ts":1792539246026,"field":"severity","old":"none","new":"high"}]}