{"id":"CVE-2026-87466","title":"Incorrect authorization in Workers in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page","summary":"Incorrect authorization in Workers in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cwe":["CWE-863"],"vendor":"google","product":"chrome","affected":["chrome < 153.0.8010.36"],"patched":["chrome 153.0.8010.36"],"published":"2026-09-09","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:30:08.563","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87466","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/500467033","label":"chrome-cve-admin@google.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87466.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-87466"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-87466"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00272,"epssPercentile":0.17369,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-09T17:25:15.168573Z"},"scores":{"nvd":4.3,"vendor":6.1,"adp":4.3},"ingestedAt":"2026-09-09T01:17:17.510Z","slug":"CVE-2026-87466","body":"## Overview\n\nIncorrect authorization in Workers in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy 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-2026-87466.json)","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":202237,"id":"CVE-2026-87466","ts":1789400065175,"field":"cvss","old":null,"new":"4.3"},{"seq":202236,"id":"CVE-2026-87466","ts":1789400065175,"field":"severity","old":"none","new":"medium"},{"seq":200964,"id":"CVE-2026-87466","ts":1789397618859,"field":"cvss","old":"4.3","new":null},{"seq":200963,"id":"CVE-2026-87466","ts":1789397618859,"field":"severity","old":"medium","new":"none"},{"seq":199657,"id":"CVE-2026-87466","ts":1789395565387,"field":"cvss","old":null,"new":"4.3"},{"seq":199656,"id":"CVE-2026-87466","ts":1789395565387,"field":"severity","old":"none","new":"medium"},{"seq":198902,"id":"CVE-2026-87466","ts":1789392253637,"field":"cvss","old":"4.3","new":null},{"seq":198901,"id":"CVE-2026-87466","ts":1789392253637,"field":"severity","old":"medium","new":"none"},{"seq":197235,"id":"CVE-2026-87466","ts":1789384296128,"field":"cvss","old":null,"new":"4.3"},{"seq":197234,"id":"CVE-2026-87466","ts":1789384296128,"field":"severity","old":"none","new":"medium"},{"seq":196509,"id":"CVE-2026-87466","ts":1789383758494,"field":"cvss","old":"4.3","new":null},{"seq":196508,"id":"CVE-2026-87466","ts":1789383758494,"field":"severity","old":"medium","new":"none"},{"seq":195413,"id":"CVE-2026-87466","ts":1789380576953,"field":"cvss","old":null,"new":"4.3"},{"seq":195412,"id":"CVE-2026-87466","ts":1789380576953,"field":"severity","old":"none","new":"medium"},{"seq":194364,"id":"CVE-2026-87466","ts":1789378785495,"field":"cvss","old":"4.3","new":null},{"seq":194363,"id":"CVE-2026-87466","ts":1789378785495,"field":"severity","old":"medium","new":"none"},{"seq":193151,"id":"CVE-2026-87466","ts":1789376520072,"field":"cvss","old":null,"new":"4.3"},{"seq":193150,"id":"CVE-2026-87466","ts":1789376520072,"field":"severity","old":"none","new":"medium"},{"seq":191938,"id":"CVE-2026-87466","ts":1789373633745,"field":"cvss","old":"4.3","new":null},{"seq":191937,"id":"CVE-2026-87466","ts":1789373633745,"field":"severity","old":"medium","new":"none"},{"seq":190723,"id":"CVE-2026-87466","ts":1789369486863,"field":"cvss","old":null,"new":"4.3"},{"seq":190722,"id":"CVE-2026-87466","ts":1789369486863,"field":"severity","old":"none","new":"medium"},{"seq":189510,"id":"CVE-2026-87466","ts":1789368454440,"field":"cvss","old":"4.3","new":null},{"seq":189509,"id":"CVE-2026-87466","ts":1789368454440,"field":"severity","old":"medium","new":"none"},{"seq":188293,"id":"CVE-2026-87466","ts":1789365236047,"field":"cvss","old":null,"new":"4.3"},{"seq":188292,"id":"CVE-2026-87466","ts":1789365236047,"field":"severity","old":"none","new":"medium"},{"seq":187080,"id":"CVE-2026-87466","ts":1789363474073,"field":"cvss","old":"4.3","new":null},{"seq":187079,"id":"CVE-2026-87466","ts":1789363474073,"field":"severity","old":"medium","new":"none"},{"seq":185866,"id":"CVE-2026-87466","ts":1789361234671,"field":"cvss","old":null,"new":"4.3"},{"seq":185865,"id":"CVE-2026-87466","ts":1789361234671,"field":"severity","old":"none","new":"medium"},{"seq":184653,"id":"CVE-2026-87466","ts":1789358370611,"field":"cvss","old":"4.3","new":null},{"seq":184652,"id":"CVE-2026-87466","ts":1789358370611,"field":"severity","old":"medium","new":"none"},{"seq":182903,"id":"CVE-2026-87466","ts":1789354322444,"field":"cvss","old":null,"new":"4.3"},{"seq":182902,"id":"CVE-2026-87466","ts":1789354322444,"field":"severity","old":"none","new":"medium"},{"seq":181696,"id":"CVE-2026-87466","ts":1789353328798,"field":"cvss","old":"4.3","new":null},{"seq":181695,"id":"CVE-2026-87466","ts":1789353328798,"field":"severity","old":"medium","new":"none"},{"seq":180489,"id":"CVE-2026-87466","ts":1789350289997,"field":"cvss","old":null,"new":"4.3"},{"seq":180488,"id":"CVE-2026-87466","ts":1789350289997,"field":"severity","old":"none","new":"medium"},{"seq":179282,"id":"CVE-2026-87466","ts":1789348300818,"field":"cvss","old":"4.3","new":null},{"seq":179281,"id":"CVE-2026-87466","ts":1789348300818,"field":"severity","old":"medium","new":"none"},{"seq":178075,"id":"CVE-2026-87466","ts":1789346377056,"field":"cvss","old":null,"new":"4.3"},{"seq":178074,"id":"CVE-2026-87466","ts":1789346377056,"field":"severity","old":"none","new":"medium"},{"seq":176868,"id":"CVE-2026-87466","ts":1789343186903,"field":"cvss","old":"4.3","new":null},{"seq":176867,"id":"CVE-2026-87466","ts":1789343186903,"field":"severity","old":"medium","new":"none"},{"seq":174985,"id":"CVE-2026-87466","ts":1789334883599,"field":"cvss","old":null,"new":"4.3"},{"seq":174984,"id":"CVE-2026-87466","ts":1789334883599,"field":"severity","old":"none","new":"medium"},{"seq":173780,"id":"CVE-2026-87466","ts":1789333702803,"field":"cvss","old":"4.3","new":null},{"seq":173779,"id":"CVE-2026-87466","ts":1789333702803,"field":"severity","old":"medium","new":"none"},{"seq":172594,"id":"CVE-2026-87466","ts":1789331096028,"fiel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