CVE-2026-118670

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-118670", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-28T17:25:37.562Z", "datePublished": "2026-11-06T17:29:15.266Z", "dateUpdated": "2026-11-06T17:47:50.262Z"}, "containers": {"cna": {"title": "OHIF Viewers: DOM-Based Cross Site Scripting (XSS) through MIME type of document", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "OHIF", "product": "Viewers", "versions": [{"version": ">= 3.5.0-beta.0, < 3.12.15", "status": "affected"}, {"version": ">= 3.13.0-beta.0, < 3.13.7", "status": "affected"}, {"version": ">= 3.14.0-beta.0, < 3.14.0-beta.19", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-06T17:29:15.266Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-xwgp-w3pj-q5h3", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-06T17:47:36.194512Z", "id": "CVE-2026-118670", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T17:47:50.262Z"}}]}}

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{"affected": [{"affectedData": [{"product": "Viewers", "vendor": "OHIF", "versions": [{"status": "affected", "version": ">= 3.5.0-beta.0, < 3.12.15"}, {"status": "affected", "version": ">= 3.13.0-beta.0, < 3.13.7"}, {"status": "affected", "version": ">= 3.14.0-beta.0, < 3.14.0-beta.19"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-118670", "lastModified": "2026-11-12T20:04:52.377", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 5.3, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-118670", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T17:47:36.194512Z", "version": "2.0.3"}}]}, "published": "2026-11-06T18:17:57.340", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/commit/db546701bd5f2be9031c835f1de5c40aacd3dc62"}, {"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/commit/ef0811c66cdb04ba07ffaba145cf66ce01486899"}, {"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/commit/f0dba789a313f40fe7e8a8cbec322a8d8a491d76"}, {"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/pull/6228"}, {"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/releases/tag/v3.12.15"}, {"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/releases/tag/v3.13.7"}, {"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/releases/tag/v3.14.0-beta.19"}, {"source": "security-advisories@github.com", "url": "https://github.com/OHIF/Viewers/security/advisories/GHSA-xwgp-w3pj-q5h3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.5.0-beta.0,3.12.15)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.13.0-beta.0,3.13.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.14.0-beta.0,3.14.0-beta.19)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Viewers", "source": "cna", "vendor": "OHIF"}, "product": "viewers", "vendor": "ohif"}], "created": "2026-11-06T18:30:09.441359+00:00", "updated": "2026-11-06T21:13:02.274562+00:00", "vendors": ["ohif", "ohif$PRODUCT$viewers"]}