{"id":"CVE-2026-79191","title":"chromium-browser: chromium-browser: Incorrect authorization in SiteIsolation (CVE-2026-79191)","summary":"An incorrect authorization 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=517606780","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","cvssSource":"vendor","cwe":["CWE-863"],"vendor":"Red Hat","product":"Chrome","affected":["Chrome >= 152.0.7977.65 < 152.0.7977.65"],"published":"2026-08-25","updated":"2026-09-26","sourceUpdated":"2026-09-26T02:20:04+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79191.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79191.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-79191"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-79191"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79191"},{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html"},{"url":"https://issues.chromium.org/issues/517606780"}],"tags":["csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00225,"epssPercentile":0.13042,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-27T19:03:15.606544Z"},"scores":{"vendor":7.6,"adp":3.1},"ingestedAt":"2026-09-17T19:26:25.331Z","slug":"CVE-2026-79191","body":"## Overview\n\nAn incorrect authorization 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=517606780\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79191.json)\n\n**chromium-browser: chromium-browser: Incorrect authorization in SiteIsolation**. Released 2026-08-25, updated 2026-09-26.\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":42,"depthScoreParts":{"impact":41.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":211312,"id":"CVE-2026-79191","ts":1790408672952,"field":"cvss","old":"3.1","new":"7.6"},{"seq":211311,"id":"CVE-2026-79191","ts":1790408672952,"field":"severity","old":"low","new":"high"}]}