{"api_version":"1","generated_at":"2026-11-06T18:31:12+00:00","cve":"CVE-2026-118670","urls":{"html":"https://cve.report/CVE-2026-118670","api":"https://cve.report/api/cve/CVE-2026-118670.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-118670","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-118670"},"summary":{"title":"OHIF Viewers: DOM-Based Cross Site Scripting (XSS) through MIME type of document","description":"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 as HTML despite the application/pdf object hint, and the Blob inherits the OHIF origin, allowing embedded script to access session storage, authentication tokens, and same-origin PACS requests. The malicious DICOM object may be opened locally, uploaded to a shared PACS, or supplied by a DICOMweb source. This issue is fixed in source versions 3.12.15, 3.13.7, and 3.14.0-beta.19.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-11-06 18:17:57","updated_at":"2026-11-06 18:17:57"},"problem_types":["CWE-79","CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site 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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 as HTML despite the application/pdf object hint, and the Blob inherits the OHIF origin, allowing embedded script to access session storage, authentication tokens, and same-origin PACS requests. The malicious DICOM object may be opened locally, uploaded to a shared PACS, or supplied by a DICOMweb source. This issue is fixed in source versions 3.12.15, 3.13.7, and 3.14.0-beta.19."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-06T17:29:15.266Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/OHIF/Viewers/security/advisories/GHSA-xwgp-w3pj-q5h3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OHIF/Viewers/security/advisories/GHSA-xwgp-w3pj-q5h3"},{"name":"https://github.com/OHIF/Viewers/pull/6228","tags":["x_refsource_MISC"],"url":"https://github.com/OHIF/Viewers/pull/6228"},{"name":"https://github.com/OHIF/Viewers/commit/db546701bd5f2be9031c835f1de5c40aacd3dc62","tags":["x_refsource_MISC"],"url":"https://github.com/OHIF/Viewers/commit/db546701bd5f2be9031c835f1de5c40aacd3dc62"},{"name":"https://github.com/OHIF/Viewers/commit/ef0811c66cdb04ba07ffaba145cf66ce01486899","tags":["x_refsource_MISC"],"url":"https://github.com/OHIF/Viewers/commit/ef0811c66cdb04ba07ffaba145cf66ce01486899"},{"name":"https://github.com/OHIF/Viewers/commit/f0dba789a313f40fe7e8a8cbec322a8d8a491d76","tags":["x_refsource_MISC"],"url":"https://github.com/OHIF/Viewers/commit/f0dba789a313f40fe7e8a8cbec322a8d8a491d76"},{"name":"https://github.com/OHIF/Viewers/releases/tag/v3.12.15","tags":["x_refsource_MISC"],"url":"https://github.com/OHIF/Viewers/releases/tag/v3.12.15"},{"name":"https://github.com/OHIF/Viewers/releases/tag/v3.13.7","tags":["x_refsource_MISC"],"url":"https://github.com/OHIF/Viewers/releases/tag/v3.13.7"},{"name":"https://github.com/OHIF/Viewers/releases/tag/v3.14.0-beta.19","tags":["x_refsource_MISC"],"url":"https://github.com/OHIF/Viewers/releases/tag/v3.14.0-beta.19"}],"source":{"advisory":"GHSA-xwgp-w3pj-q5h3","discovery":"UNKNOWN"},"title":"OHIF Viewers: DOM-Based Cross Site Scripting (XSS) through MIME type of document"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-118670","datePublished":"2026-11-06T17:29:15.266Z","dateReserved":"2026-10-28T17:25:37.562Z","dateUpdated":"2026-11-06T17:47:50.262Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-06 18:17:57","lastModifiedDate":"2026-11-06 18:17:57","problem_types":["CWE-79","CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":5.3}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-06T17:47:36.194512Z","id":"CVE-2026-118670","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"118670","Ordinal":"1","Title":"OHIF Viewers: DOM-Based Cross Site Scripting (XSS) through MIME ","CVE":"CVE-2026-118670","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"118670","Ordinal":"1","NoteData":"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 as HTML despite the application/pdf object hint, and the Blob inherits the OHIF origin, allowing embedded script to access session storage, authentication tokens, and same-origin PACS requests. The malicious DICOM object may be opened locally, uploaded to a shared PACS, or supplied by a DICOMweb source. This issue is fixed in source versions 3.12.15, 3.13.7, and 3.14.0-beta.19.","Type":"Description","Title":"OHIF Viewers: DOM-Based Cross Site Scripting (XSS) through MIME "}]}}}