{"id":"CVE-2026-87608","title":"Improper certificate validation in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic","summary":"Improper certificate validation in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic. (Chromium security severity: Low)","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-295"],"vendor":"google","product":"chrome","affected":["chrome < 153.0.8010.36"],"patched":["chrome 153.0.8010.36"],"published":"2026-09-09","updated":"2026-09-14","sourceUpdated":"2026-09-14T21:43:36.733","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87608","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/540072282","label":"chrome-cve-admin@google.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87608.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-87608"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-87608"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00259,"epssPercentile":0.17492,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-14T12:52:32.766774Z"},"ingestedAt":"2026-09-09T01:17:17.505Z","scores":{"nvd":7.5,"vendor":3.1},"slug":"CVE-2026-87608","body":"## Overview\n\nImproper certificate validation in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic. (Chromium security severity: Low)\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 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87608.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":202527,"id":"CVE-2026-87608","ts":1789400085819,"field":"cvss","old":null,"new":"7.5"},{"seq":202526,"id":"CVE-2026-87608","ts":1789400085819,"field":"severity","old":"none","new":"high"},{"seq":201254,"id":"CVE-2026-87608","ts":1789397620474,"field":"cvss","old":"7.5","new":null},{"seq":201253,"id":"CVE-2026-87608","ts":1789397620474,"field":"severity","old":"high","new":"none"},{"seq":199947,"id":"CVE-2026-87608","ts":1789395578414,"field":"cvss","old":null,"new":"7.5"},{"seq":199946,"id":"CVE-2026-87608","ts":1789395578414,"field":"severity","old":"none","new":"high"}]}