{"affected":[{"product":"Chrome","source":"CNA: Chrome","vendor":"Google","versions":[{"lessThan":"157.0.8103.38","status":"affected","version":"157.0.8103.38","versionType":"custom"}]}],"cveId":"CVE-2026-121103","cwes":["CWE-863"],"description":"Incorrect authorization in Extensions in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted Chrome extension. (Chromium security severity: Medium)","epss":{"date":"2026-11-10","percentile":0.05705,"score":0.00164},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://issues.chromium.org/issues/553138801"}],"kev":null,"metrics":[{"score":6.5,"severity":"medium","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1794322044990,"publishedAt":1793738564576,"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/553138801"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://issues.chromium.org/issues/553138801"},{"source":"chrome-cve-admin@google.com","tags":[],"url":"https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html"},{"source":"chrome-cve-admin@google.com","tags":[],"url":"https://issues.chromium.org/issues/553138801"}],"remediation":[],"revision":"9b096c959337218cbac03d7c98edaed43cc92c9334f48c6bdffc39fd259bd476","sources":[{"modifiedAt":1794322044990,"name":"CNA: Chrome","retrievedAt":1794323348964,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121103"},{"modifiedAt":1793740636610,"name":"NVD","retrievedAt":1793751732272,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121103"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794323376722,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-121103"}],"ssvc":{"assessedAt":1794322034587,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"CVE-2026-121103","updatedAt":1794323376722}