{"id":"CVE-2026-87436","title":"Incomplete cleanup in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension","summary":"Incomplete cleanup in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Medium)","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","cwe":["CWE-459"],"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":"2026-09-10T19:26:00.943","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87436","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/511754574","label":"chrome-cve-admin@google.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-10T18:23:28.491775Z"},"epss":0.00331,"epssPercentile":0.2651,"ingestedAt":"2026-09-09T01:17:17.509Z","slug":"CVE-2026-87436","body":"## Overview\n\nIncomplete cleanup in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (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`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":202177,"id":"CVE-2026-87436","ts":1789400064944,"field":"cvss","old":null,"new":"6.5"},{"seq":202176,"id":"CVE-2026-87436","ts":1789400064944,"field":"severity","old":"none","new":"medium"},{"seq":200904,"id":"CVE-2026-87436","ts":1789397618429,"field":"cvss","old":"6.5","new":null},{"seq":200903,"id":"CVE-2026-87436","ts":1789397618429,"field":"severity","old":"medium","new":"none"},{"seq":199597,"id":"CVE-2026-87436","ts":1789395560683,"field":"cvss","old":null,"new":"6.5"},{"seq":199596,"id":"CVE-2026-87436","ts":1789395560683,"field":"severity","old":"none","new":"medium"},{"seq":198842,"id":"CVE-2026-87436","ts":1789392249085,"field":"cvss","old":"6.5","new":null},{"seq":198841,"id":"CVE-2026-87436","ts":1789392249085,"field":"severity","old":"medium","new":"none"},{"seq":197175,"id":"CVE-2026-87436","ts":1789384295939,"field":"cvss","old":null,"new":"6.5"},{"seq":197174,"id":"CVE-2026-87436","ts":1789384295939,"field":"severity","old":"none","new":"medium"},{"seq":196449,"id":"CVE-2026-87436","ts":1789383757785,"field":"cvss","old":"6.5","new":null},{"seq":196448,"id":"CVE-2026-87436","ts":1789383757785,"field":"severity","old":"medium","new":"none"},{"seq":195353,"id":"CVE-2026-87436","ts":1789380576743,"field":"cvss","old":null,"new":"6.5"},{"seq":195352,"id":"CVE-2026-87436","ts":1789380576743,"field":"severity","old":"none","new":"medium"},{"seq":194304,"id":"CVE-2026-87436","ts":1789378785075,"field":"cvss","old":"6.5","new":null},{"seq":194303,"id":"CVE-2026-87436","ts":1789378785075,"field":"severity","old":"medium","new":"none"},{"seq":193091,"id":"CVE-2026-87436","ts":1789376519857,"field":"cvss","old":null,"new":"6.5"},{"seq":193090,"id":"CVE-2026-87436","ts":1789376519857,"field":"severity","old":"none","new":"medium"},{"seq":191878,"id":"CVE-2026-87436","ts":1789373633322,"field":"cvss","old":"6.5","new":null},{"seq":191877,"id":"CVE-2026-87436","ts":1789373633322,"field":"severity","old":"medium","new":"none"},{"seq":190663,"id":"CVE-2026-87436","ts":1789369486393,"field":"cvss","old":null,"new":"6.5"},{"seq":190662,"id":"CVE-2026-87436","ts":1789369486393,"field":"severity","old":"none","new":"medium"},{"seq":189450,"id":"CVE-2026-87436","ts":1789368450267,"field":"cvss","old":"6.5","new":null},{"seq":189449,"id":"CVE-2026-87436","ts":1789368450267,"field":"severity","old":"medium","new":"none"},{"seq":188233,"id":"CVE-2026-87436","ts":1789365235834,"field":"cvss","old":null,"new":"6.5"},{"seq":188232,"id":"CVE-2026-87436","ts":1789365235834,"field":"severity","old":"none","new":"medium"},{"seq":187020,"id":"CVE-2026-87436","ts":1789363473132,"field":"cvss","old":"6.5","new":null},{"seq":187019,"id":"CVE-2026-87436","ts":1789363473132,"field":"severity","old":"medium","new":"none"},{"seq":185806,"id":"CVE-2026-87436","ts":1789361234469,"field":"cvss","old":null,"new":"6.5"},{"seq":185805,"id":"CVE-2026-87436","ts":1789361234469,"field":"severity","old":"none","new":"medium"},{"seq":184593,"id":"CVE-2026-87436","ts":1789358366286,"field":"cvss","old":"6.5","new":null},{"seq":184592,"id":"CVE-2026-87436","ts":1789358366286,"field":"severity","old":"medium","new":"none"},{"seq":182843,"id":"CVE-2026-87436","ts":1789354322206,"field":"cvss","old":null,"new":"6.5"},{"seq":182842,"id":"CVE-2026-87436","ts":1789354322206,"field":"severity","old":"none","new":"medium"},{"seq":181636,"id":"CVE-2026-87436","ts":1789353324807,"field":"cvss","old":"6.5","new":null},{"seq":181635,"id":"CVE-2026-87436","ts":1789353324807,"field":"severity","old":"medium","new":"none"},{"seq":180429,"id":"CVE-2026-87436","ts":1789350289797,"field":"cvss","old":null,"new":"6.5"},{"seq":180428,"id":"CVE-2026-87436","ts":1789350289797,"field":"severity","old":"none","new":"medium"},{"seq":179222,"id":"CVE-2026-87436","ts":1789348296059,"field":"cvss","old":"6.5","new":null},{"seq":179221,"id":"CVE-2026-87436","ts":1789348296059,"field":"severity","old":"medium","new":"none"},{"seq":178015,"id":"CVE-2026-87436","ts":1789346376850,"field":"cvss","old":null,"new":"6.5"},{"seq":178014,"id":"CVE-2026-87436","ts":1789346376850,"field":"severity","old":"none","new":"medium"},{"seq":176808,"id":"CVE-2026-87436","ts":1789343186485,"field":"cvss","old":"6.5","new":null},{"seq":176807,"id":"CVE-2026-87436","ts":1789343186485,"field":"severity","old":"medium","new":"none"},{"seq":174925,"id":"CVE-2026-87436","ts":1789334883363,"field":"cvss","old":null,"new":"6.5"},{"seq":174924,"id":"CVE-2026-87436","ts":1789334883363,"field":"severity","old":"none","new":"medium"},{"seq":173720,"id":"CVE-2026-87436","ts":1789333702580,"field":"cvss","old":"6.5","new":null},{"seq":173719,"id":"CVE-2026-87436","ts":1789333702580,"field":"severity","old":"medium","new":"none"},{"seq":172534,"id":"CVE-2026-87436","ts":1789331095824,"field":"cvss","old":null,"new":"6.5"},{"seq":172533,"id":"CVE-2026-87436"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