{"id":"CVE-2026-87540","title":"Incorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to spoof UI elements via a crafted HTML page","summary":"Incorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","cwe":["CWE-863"],"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":"2026-09-10T18:45:25.273","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87540","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/517721914","label":"chrome-cve-admin@google.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87540.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-87540"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-87540"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00177,"epssPercentile":0.07539,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-09T19:39:12.834087Z"},"scores":{"nvd":5.4,"vendor":4.3,"adp":5.4},"ingestedAt":"2026-09-09T01:17:17.508Z","slug":"CVE-2026-87540","body":"## Overview\n\nIncorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to spoof UI elements 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-2026-87540.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":202390,"id":"CVE-2026-87540","ts":1789400070425,"field":"cvss","old":null,"new":"5.4"},{"seq":202389,"id":"CVE-2026-87540","ts":1789400070425,"field":"severity","old":"none","new":"medium"},{"seq":201117,"id":"CVE-2026-87540","ts":1789397619965,"field":"cvss","old":"5.4","new":null},{"seq":201116,"id":"CVE-2026-87540","ts":1789397619965,"field":"severity","old":"medium","new":"none"},{"seq":199810,"id":"CVE-2026-87540","ts":1789395577134,"field":"cvss","old":null,"new":"5.4"},{"seq":199809,"id":"CVE-2026-87540","ts":1789395577134,"field":"severity","old":"none","new":"medium"},{"seq":199051,"id":"CVE-2026-87540","ts":1789392260071,"field":"cvss","old":"5.4","new":null},{"seq":199050,"id":"CVE-2026-87540","ts":1789392260071,"field":"severity","old":"medium","new":"none"},{"seq":197384,"id":"CVE-2026-87540","ts":1789384296605,"field":"cvss","old":null,"new":"5.4"},{"seq":197383,"id":"CVE-2026-87540","ts":1789384296605,"field":"severity","old":"none","new":"medium"},{"seq":196658,"id":"CVE-2026-87540","ts":1789383768385,"field":"cvss","old":"5.4","new":null},{"seq":196657,"id":"CVE-2026-87540","ts":1789383768385,"field":"severity","old":"medium","new":"none"},{"seq":195562,"id":"CVE-2026-87540","ts":1789380577983,"field":"cvss","old":null,"new":"5.4"},{"seq":195561,"id":"CVE-2026-87540","ts":1789380577983,"field":"severity","old":"none","new":"medium"},{"seq":194513,"id":"CVE-2026-87540","ts":1789378789214,"field":"cvss","old":"5.4","new":null},{"seq":194512,"id":"CVE-2026-87540","ts":1789378789214,"field":"severity","old":"medium","new":"none"},{"seq":193300,"id":"CVE-2026-87540","ts":1789376520626,"field":"cvss","old":null,"new":"5.4"},{"seq":193299,"id":"CVE-2026-87540","ts":1789376520626,"field":"severity","old":"none","new":"medium"},{"seq":192087,"id":"CVE-2026-87540","ts":1789373638982,"field":"cvss","old":"5.4","new":null},{"seq":192086,"id":"CVE-2026-87540","ts":1789373638982,"field":"severity","old":"medium","new":"none"},{"seq":190872,"id":"CVE-2026-87540","ts":1789369487520,"field":"cvss","old":null,"new":"5.4"},{"seq":190871,"id":"CVE-2026-87540","ts":1789369487520,"field":"severity","old":"none","new":"medium"},{"seq":189659,"id":"CVE-2026-87540","ts":1789368460589,"field":"cvss","old":"5.4","new":null},{"seq":189658,"id":"CVE-2026-87540","ts":1789368460589,"field":"severity","old":"medium","new":"none"},{"seq":188442,"id":"CVE-2026-87540","ts":1789365236551,"field":"cvss","old":null,"new":"5.4"},{"seq":188441,"id":"CVE-2026-87540","ts":1789365236551,"field":"severity","old":"none","new":"medium"},{"seq":187229,"id":"CVE-2026-87540","ts":1789363479932,"field":"cvss","old":"5.4","new":null},{"seq":187228,"id":"CVE-2026-87540","ts":1789363479932,"field":"severity","old":"medium","new":"none"},{"seq":186015,"id":"CVE-2026-87540","ts":1789361235190,"field":"cvss","old":null,"new":"5.4"},{"seq":186014,"id":"CVE-2026-87540","ts":1789361235190,"field":"severity","old":"none","new":"medium"},{"seq":184802,"id":"CVE-2026-87540","ts":1789358376930,"field":"cvss","old":"5.4","new":null},{"seq":184801,"id":"CVE-2026-87540","ts":1789358376930,"field":"severity","old":"medium","new":"none"},{"seq":183051,"id":"CVE-2026-87540","ts":1789354323037,"field":"cvss","old":null,"new":"5.4"},{"seq":183050,"id":"CVE-2026-87540","ts":1789354323037,"field":"severity","old":"none","new":"medium"},{"seq":181844,"id":"CVE-2026-87540","ts":1789353334910,"field":"cvss","old":"5.4","new":null},{"seq":181843,"id":"CVE-2026-87540","ts":1789353334910,"field":"severity","old":"medium","new":"none"},{"seq":180637,"id":"CVE-2026-87540","ts":1789350290531,"field":"cvss","old":null,"new":"5.4"},{"seq":180636,"id":"CVE-2026-87540","ts":1789350290531,"field":"severity","old":"none","new":"medium"},{"seq":179430,"id":"CVE-2026-87540","ts":1789348308202,"field":"cvss","old":"5.4","new":null},{"seq":179429,"id":"CVE-2026-87540","ts":1789348308202,"field":"severity","old":"medium","new":"none"},{"seq":178223,"id":"CVE-2026-87540","ts":1789346377557,"field":"cvss","old":null,"new":"5.4"},{"seq":178222,"id":"CVE-2026-87540","ts":1789346377557,"field":"severity","old":"none","new":"medium"},{"seq":177016,"id":"CVE-2026-87540","ts":1789343188144,"field":"cvss","old":"5.4","new":null},{"seq":177015,"id":"CVE-2026-87540","ts":1789343188144,"field":"severity","old":"medium","new":"none"},{"seq":175133,"id":"CVE-2026-87540","ts":1789334884186,"field":"cvss","old":null,"new":"5.4"},{"seq":175132,"id":"CVE-2026-87540","ts":1789334884186,"field":"severity","old":"none","new":"medium"},{"seq":173928,"id":"CVE-2026-87540","ts":1789333703328,"field":"cvss","old":"5.4","new":null},{"seq":173927,"id":"CVE-2026-87540","ts":1789333703328,"field":"severity","old":"medium","new":"none"},{"seq":172742,"id":"CVE-2026-87540","ts":1789331096561,"field"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