CVE-2026-17496

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Attacker-controlled content that reaches the model prompt (for example a malicious skill REFERENCE.md that instructs the model to emit HTML) can cause the model response to include executable markup such as an img onerror handler. When the user views the chat response, that markup runs as JavaScript in the privileged Tauri webview, enabling arbitrary script execution in the application context (cross-site scripting).", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>NoteGen before 0.32.0 renders AI chat responses with markdown-it configured with html:true and injects the result into the DOM via dangerouslySetInnerHTML in chat-preview, without HTML sanitization and with CSP set to null. Attacker-controlled content that reaches the model prompt (for example a malicious skill REFERENCE.md that instructs the model to emit HTML) can cause the model response to include executable markup such as an img onerror handler. When the user views the chat response, that markup runs as JavaScript in the privileged Tauri webview, enabling arbitrary script execution in the application context (cross-site scripting).</p>"}]}], "references": [{"url": "https://github.com/codexu/note-gen/commit/ae3ba948c41d8a74b4a20f4c6f26fcdda2002298", "name": "Fix: chat rendering moved to Streamdown", "tags": ["patch"]}, {"url": "https://github.com/codexu/note-gen/releases/tag/note-gen-v0.32.0", "name": "NoteGen v0.32.0 release", "tags": ["vendor-advisory"]}, {"url": "https://github.com/codexu/note-gen", "name": "NoteGen repository", "tags": ["product"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 8.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"}}], "configurations": [{"lang": "en", "value": "Affects the NoteGen desktop application on a default installation. Exploitation requires user interaction to install or otherwise load attacker-influenced skill/content and to view a chat response that includes the malicious HTML. No non-default configuration is required; CSP is null in affected builds.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Affects the NoteGen desktop application on a default installation. Exploitation requires user interaction to install or otherwise load attacker-influenced skill/content and to view a chat response that includes the malicious HTML. No non-default configuration is required; CSP is null in affected builds.</p>"}]}], "solutions": [{"lang": "en", "value": "Upgrade to NoteGen 0.32.0 or later. The fix replaces unsanitized markdown-it HTML injection in chat preview with Streamdown-based rendering that hardens/sanitizes untrusted HTML in model output.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Upgrade to NoteGen 0.32.0 or later. The fix replaces unsanitized markdown-it HTML injection in chat preview with Streamdown-based rendering that hardens/sanitizes untrusted HTML in model output.</p>"}]}], "timeline": [{"time": "2026-06-08T00:00:00.000Z", "lang": "en", "value": "Vulnerability discovered and PoC verified"}, {"time": "2026-07-20T00:00:00.000Z", "lang": "en", "value": "Fix released in NoteGen v0.32.0 (Streamdown chat rendering)"}], "credits": [{"lang": "en", "value": "Yuval Moravchick", "type": "finder"}, {"lang": "en", "value": "JFrog Security Research", "type": "coordinator"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-27T14:44:36.321556Z", "id": "CVE-2026-17496", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-27T14:44:46.464Z"}}]}}

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{"affected": [{"affectedData": [{"collectionURL": "https://github.com/codexu/note-gen", "defaultStatus": "unaffected", "packageName": "note-gen", "product": "NoteGen", "programFiles": ["src/app/core/main/chat/chat-preview.tsx"], "repo": "git://github.com/codexu/note-gen", "vendor": "codexu", "versions": [{"lessThan": "0.32.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "reefs@jfrog.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:notegen:notegen:*:*:*:*:*:*:*:*", "matchCriteriaId": "5F83DD43-1270-4565-A7C2-571006205DDC", "versionEndExcluding": "0.32.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "NoteGen before 0.32.0 renders AI chat responses with markdown-it configured with html:true and injects the result into the DOM via dangerouslySetInnerHTML in chat-preview, without HTML sanitization and with CSP set to null. Attacker-controlled content that reaches the model prompt (for example a malicious skill REFERENCE.md that instructs the model to emit HTML) can cause the model response to include executable markup such as an img onerror handler. When the user views the chat response, that markup runs as JavaScript in the privileged Tauri webview, enabling arbitrary script execution in the application context (cross-site scripting)."}, {"lang": "es", "value": "NoteGen antes de la versi\u00f3n 0.32.0 renderiza las respuestas del chat de IA con markdown-it configurado con html:true e inyecta el resultado en el DOM a trav\u00e9s de dangerouslySetInnerHTML en chat-preview, sin saneamiento de HTML y con CSP establecido en null. Contenido controlado por el atacante que llega al prompt del modelo (por ejemplo, un REFERENCE.md de habilidad malicioso que instruye al modelo a emitir HTML) puede hacer que la respuesta del modelo incluya marcado ejecutable como un gestor img onerror. Cuando el usuario ve la respuesta del chat, ese marcado se ejecuta como JavaScript en la webview privilegiada de Tauri, permitiendo la ejecuci\u00f3n arbitraria de scripts en el contexto de la aplicaci\u00f3n (cross-site scripting)."}], "id": "CVE-2026-17496", "lastModified": "2026-10-24T13:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "reefs@jfrog.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-17496", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-27T14:44:36.321556Z", "version": "2.0.3"}}]}, "published": "2026-07-26T15:16:27.710", "references": [{"source": "reefs@jfrog.com", "tags": ["Product"], "url": "https://github.com/codexu/note-gen"}, {"source": "reefs@jfrog.com", "tags": ["Patch"], "url": "https://github.com/codexu/note-gen/commit/ae3ba948c41d8a74b4a20f4c6f26fcdda2002298"}, {"source": "reefs@jfrog.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/codexu/note-gen/releases/tag/note-gen-v0.32.0"}], "sourceIdentifier": "reefs@jfrog.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "reefs@jfrog.com", "type": "Secondary"}]}

{}

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