{"affected":[{"product":"Chrome","source":"CNA: Chrome","vendor":"Google","versions":[{"lessThan":"157.0.8103.38","status":"affected","version":"157.0.8103.38","versionType":"custom"}]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*","versionEndExcluding":"157.0.8103.38","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-121174","cwes":["CWE-862"],"description":"Missing authorization in BackgroundFetch in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)","epss":{"date":"2026-11-04","percentile":0.14467,"score":0.00234},"exploits":[],"kev":null,"metrics":[{"score":8.8,"severity":"high","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},{"score":8.8,"severity":"high","source":"NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793900140960,"publishedAt":1793738543430,"references":[{"source":"CNA: Chrome","tags":[],"url":"https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html"},{"source":"CNA: Chrome","tags":[],"url":"https://issues.chromium.org/issues/496008447"},{"source":"chrome-cve-admin@google.com","tags":["Release Notes","Vendor Advisory"],"url":"https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html"},{"source":"chrome-cve-admin@google.com","tags":["Permissions Required"],"url":"https://issues.chromium.org/issues/496008447"}],"remediation":[],"revision":"813223b5b5882dfa11747c0976e1d2a3350be2adbe9f7dba10bf435e90fcb08c","sources":[{"modifiedAt":1793823669200,"name":"CNA: Chrome","retrievedAt":1793826682832,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121174"},{"modifiedAt":1793900140960,"name":"NVD","retrievedAt":1793902971923,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121174"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793826704360,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-121174"}],"ssvc":{"assessedAt":1793823501962,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"CVE-2026-121174","updatedAt":1793902971923}