{"id":"CVE-2026-87553","title":"Improper input validation in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page","summary":"Improper input validation in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chr…","severity":"high","cvss":8.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-20"],"vendor":"google","product":"chrome","affected":["chrome < 153.0.8010.36"],"patched":["chrome 153.0.8010.36"],"published":"2026-09-09","updated":"2026-09-10","sourceUpdated":"2026-09-10T04:18:25.927","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87553","references":[{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html","label":"chrome-cve-admin@google.com"},{"url":"https://issues.chromium.org/issues/496595299","label":"chrome-cve-admin@google.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87553.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-87553"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-87553"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-09T14:13:28.362245Z"},"epss":0.00369,"epssPercentile":0.30724,"scores":{"nvd":8.3,"vendor":9,"adp":8.3},"ingestedAt":"2026-09-09T01:17:17.511Z","slug":"CVE-2026-87553","body":"## Overview\n\nImproper input validation in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)\n\n## Affected\n\n- `chrome < 153.0.8010.36`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `chrome 153.0.8010.36`\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87553.json)","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":45.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":202416,"id":"CVE-2026-87553","ts":1789400072796,"field":"cvss","old":null,"new":"8.3"},{"seq":202415,"id":"CVE-2026-87553","ts":1789400072796,"field":"severity","old":"none","new":"high"},{"seq":201143,"id":"CVE-2026-87553","ts":1789397620066,"field":"cvss","old":"8.3","new":null},{"seq":201142,"id":"CVE-2026-87553","ts":1789397620066,"field":"severity","old":"high","new":"none"},{"seq":199836,"id":"CVE-2026-87553","ts":1789395578036,"field":"cvss","old":null,"new":"8.3"},{"seq":199835,"id":"CVE-2026-87553","ts":1789395578036,"field":"severity","old":"none","new":"high"},{"seq":199077,"id":"CVE-2026-87553","ts":1789392260157,"field":"cvss","old":"8.3","new":null},{"seq":199076,"id":"CVE-2026-87553","ts":1789392260157,"field":"severity","old":"high","new":"none"},{"seq":197410,"id":"CVE-2026-87553","ts":1789384296694,"field":"cvss","old":null,"new":"8.3"},{"seq":197409,"id":"CVE-2026-87553","ts":1789384296694,"field":"severity","old":"none","new":"high"},{"seq":196684,"id":"CVE-2026-87553","ts":1789383770082,"field":"cvss","old":"8.3","new":null},{"seq":196683,"id":"CVE-2026-87553","ts":1789383770082,"field":"severity","old":"high","new":"none"},{"seq":195588,"id":"CVE-2026-87553","ts":1789380578074,"field":"cvss","old":null,"new":"8.3"},{"seq":195587,"id":"CVE-2026-87553","ts":1789380578074,"field":"severity","old":"none","new":"high"},{"seq":194539,"id":"CVE-2026-87553","ts":1789378789302,"field":"cvss","old":"8.3","new":null},{"seq":194538,"id":"CVE-2026-87553","ts":1789378789302,"field":"severity","old":"high","new":"none"},{"seq":193326,"id":"CVE-2026-87553","ts":1789376520718,"field":"cvss","old":null,"new":"8.3"},{"seq":193325,"id":"CVE-2026-87553","ts":1789376520718,"field":"severity","old":"none","new":"high"},{"seq":192113,"id":"CVE-2026-87553","ts":1789373639096,"field":"cvss","old":"8.3","new":null},{"seq":192112,"id":"CVE-2026-87553","ts":1789373639096,"field":"severity","old":"high","new":"none"},{"seq":190898,"id":"CVE-2026-87553","ts":1789369487621,"field":"cvss","old":null,"new":"8.3"},{"seq":190897,"id":"CVE-2026-87553","ts":1789369487621,"field":"severity","old":"none","new":"high"},{"seq":189685,"id":"CVE-2026-87553","ts":1789368460684,"field":"cvss","old":"8.3","new":null},{"seq":189684,"id":"CVE-2026-87553","ts":1789368460684,"field":"severity","old":"high","new":"none"},{"seq":188468,"id":"CVE-2026-87553","ts":1789365236640,"field":"cvss","old":null,"new":"8.3"},{"seq":188467,"id":"CVE-2026-87553","ts":1789365236640,"field":"severity","old":"none","new":"high"},{"seq":187255,"id":"CVE-2026-87553","ts":1789363480022,"field":"cvss","old":"8.3","new":null},{"seq":187254,"id":"CVE-2026-87553","ts":1789363480022,"field":"severity","old":"high","new":"none"},{"seq":186041,"id":"CVE-2026-87553","ts":1789361235281,"field":"cvss","old":null,"new":"8.3"},{"seq":186040,"id":"CVE-2026-87553","ts":1789361235281,"field":"severity","old":"none","new":"high"},{"seq":184828,"id":"CVE-2026-87553","ts":1789358377019,"field":"cvss","old":"8.3","new":null},{"seq":184827,"id":"CVE-2026-87553","ts":1789358377019,"field":"severity","old":"high","new":"none"},{"seq":183077,"id":"CVE-2026-87553","ts":1789354323138,"field":"cvss","old":null,"new":"8.3"},{"seq":183076,"id":"CVE-2026-87553","ts":1789354323138,"field":"severity","old":"none","new":"high"},{"seq":181870,"id":"CVE-2026-87553","ts":1789353335000,"field":"cvss","old":"8.3","new":null},{"seq":181869,"id":"CVE-2026-87553","ts":1789353335000,"field":"severity","old":"high","new":"none"},{"seq":180663,"id":"CVE-2026-87553","ts":1789350290637,"field":"cvss","old":null,"new":"8.3"},{"seq":180662,"id":"CVE-2026-87553","ts":1789350290637,"field":"severity","old":"none","new":"high"},{"seq":179456,"id":"CVE-2026-87553","ts":1789348308289,"field":"cvss","old":"8.3","new":null},{"seq":179455,"id":"CVE-2026-87553","ts":1789348308289,"field":"severity","old":"high","new":"none"},{"seq":178249,"id":"CVE-2026-87553","ts":1789346377643,"field":"cvss","old":null,"new":"8.3"},{"seq":178248,"id":"CVE-2026-87553","ts":1789346377643,"field":"severity","old":"none","new":"high"},{"seq":177042,"id":"CVE-2026-87553","ts":1789343188238,"field":"cvss","old":"8.3","new":null},{"seq":177041,"id":"CVE-2026-87553","ts":1789343188238,"field":"severity","old":"high","new":"none"},{"seq":175159,"id":"CVE-2026-87553","ts":1789334884287,"field":"cvss","old":null,"new":"8.3"},{"seq":175158,"id":"CVE-2026-87553","ts":1789334884287,"field":"severity","old":"none","new":"high"},{"seq":173954,"id":"CVE-2026-87553","ts":1789333703416,"field":"cvss","old":"8.3","new":null},{"seq":173953,"id":"CVE-2026-87553","ts":1789333703416,"field":"severity","old":"high","new":"none"},{"seq":172768,"id":"CVE-2026-87553","ts":1789331096652,"field":"cvss","old":null,"new":"8.3"},{"seq":17276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