{"id":"EM-20261110-EITR","url":"https://cyber.eventmonitor.net/incident/EM-20261110-EITR/ohif-viewers-vulnerability-cve-2026-118670/","type":"cve","title":"OHIF Viewers Vulnerability (CVE-2026-118670)","subtitle":"CVE-2026-118670","subject":"CVE-2026-118670","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-10T15:57:51.000Z","firstSignal":"2026-11-06T18:17:57.340Z","lastSignal":"2026-11-10T15:57:51.000Z","updated":"2026-11-10T16:07:51.148Z","revision":1,"life":[{"status":"Born","at":"2026-11-10T15:57:51.000Z","why":"second independent source: C26 GitHub Advisory Database"},{"status":"Developing","at":"2026-11-10T15:57:51.000Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-06T18:17:57.340Z","what":"First signal: C6 NVD CVE API 2.0"},{"at":"2026-11-10T15:57:51.000Z","what":"Born: second source, C26 GitHub Advisory Database. Page EM-20261110-EITR created."}],"stages":[{"name":"Disclosed","at":"2026-11-06T18:17:57.340Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-06T18:17:57.340Z","detail":"CVSS 8.8 · EPSS 0.4%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":null,"detail":"None in sources yet"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-06T18:17:57.340Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-118670 (CVSS 8.8)","text":"OHIF Viewers is a zero-footprint DICOM viewer with shared extension packages. From 3.5.0-beta.0 until 3.12.15, 3.13.7, and 3.14.0-beta.19, the dicom-pdf extension reads the attacker-controlled MIMETypeOfEncapsulatedDocument value in extensions/dicom-pdf/src/getSopClassHandlerModule.js and uses it as the Blob media type for the attacker-controlled EncapsulatedDocument bytes. When a victim opens Encapsulated PDF SOP Class 1.2.840.10008.5.1.4.1.1.104.1, extensions/dicom-pdf/src/viewports/OHIFCornerstonePdfViewport.tsx embeds the Blob URL in an object element. A Blob labeled as HTML is handled…","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118670"},{"at":"2026-11-10T15:57:51.000Z","source":"C26","sourceName":"GitHub Advisory Database","role":"Database","severity":3,"title":"GHSA-xwgp-w3pj-q5h3 / CVE-2026-118670: OHIF Viewers: DOM-Based Cross Site Scripting (XSS) through MIME type of document","text":"npm:@ohif/extension-dicom-pdf, npm:@ohif/extension-dicom-pdf, npm:@ohif/extension-dicom-pdf","url":"https://github.com/advisories/GHSA-xwgp-w3pj-q5h3"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-06T18:17:57.340","score":8.8,"severity":"HIGH","desc":"OHIF Viewers is a zero-footprint DICOM viewer with shared extension packages. From 3.5.0-beta.0 until 3.12.15, 3.13.7, and 3.14.0-beta.19, the dicom-pdf extension reads the attacker-controlled MIMETypeOfEncapsulatedDocument value in extensions/dicom-pdf/src/getSopClassHandlerModule.js and uses it…","product":"","seen":1793997521719},"kev":null,"epss":{"epss":0.00421,"pct":0.36692,"at":1794326871148},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}