CVE-2026-32938

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the /api/lute/html2BlockDOM on the desktop copies local files pointed to by file:// links in pasted HTML into the workspace assets directory without validating paths against a sensitive-path list. Together with GET /assets/*path, which only requires authentication, a publish-service visitor can cause the desktop kernel to copy any readable sensitive file and then read it via GET, leading to exfiltration of sensitive files. This issue has been fixed in version 3.6.1.

CVSS v3 9.9 CRITICAL

9.9^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/commit/294b8b429dea152cd1df522cddf406054c1619ad	Patch
https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1	Release Notes
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fq2j-j8hc-8vw8	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-20 04:16

Updated : 2026-03-23 18:21

NVD link : CVE-2026-32938

Mitre link : CVE-2026-32938

CVE.ORG link : CVE-2026-32938

JSON object : View

Products Affected

b3log

siyuan

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-284

Improper Access Control

{"id": "CVE-2026-32938", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.9, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.1}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-03-20T04:16:48.950", "references": [{"url": "https://github.com/siyuan-note/siyuan/commit/294b8b429dea152cd1df522cddf406054c1619ad", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fq2j-j8hc-8vw8", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-284"}]}], "descriptions": [{"lang": "en", "value": "SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the /api/lute/html2BlockDOM on the desktop copies local files pointed to by file:// links in pasted HTML into the workspace assets directory without validating paths against a sensitive-path list. Together with GET /assets/*path, which only requires authentication, a publish-service visitor can cause the desktop kernel to copy any readable sensitive file and then read it via GET, leading to exfiltration of sensitive files. This issue has been fixed in version 3.6.1."}, {"lang": "es", "value": "SiYuan es un sistema de gesti\u00f3n de conocimiento personal. En las versiones 3.6.0 e inferiores, la API /api/lute/html2BlockDOM en el escritorio copia archivos locales a los que apuntan los enlaces file:// en HTML pegado al directorio de activos del espacio de trabajo sin validar las rutas contra una lista de rutas sensibles. Junto con GET /assets/*path, que solo requiere autenticaci\u00f3n, un visitante del servicio de publicaci\u00f3n puede hacer que el kernel del escritorio copie cualquier archivo sensible legible y luego lo lea a trav\u00e9s de GET, lo que lleva a la exfiltraci\u00f3n de archivos sensibles. Este problema ha sido solucionado en la versi\u00f3n 3.6.1."}], "lastModified": "2026-03-23T18:21:08.847", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E1AA6470-222A-4841-A487-DF65F9859780", "versionEndExcluding": "3.6.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}