CVE-2026-73605

SiYuan versions before v3.7.4 contain a path traversal vulnerability in the getUniqueFilename endpoint that allows anonymous readers to probe filesystem existence without validation or confinement. Attackers can supply arbitrary absolute paths to determine whether files and directories exist on the host, enabling reconnaissance of the filesystem layout and installed software.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hf8h-97gm-4x2p
https://www.vulncheck.com/advisories/siyuan-before-path-traversal-via-getuniquefilename

Configurations

No configuration.

History

23 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) Las versiones de SiYuan anteriores a la v3.7.4 contienen una vulnerabilidad de salto de ruta en el endpoint getUniqueFilename que permite a lectores anónimos sondear la existencia del sistema de archivos sin validación ni confinamiento. Los atacantes pueden proporcionar rutas absolutas arbitrarias para determinar si existen archivos y directorios en el host, lo que permite el reconocimiento del diseño del sistema de archivos y del software instalado.

Information

Published : 2026-08-13 12:17

Updated : 2026-10-24 15:10

NVD link : CVE-2026-73605

Mitre link : CVE-2026-73605

CVE.ORG link : CVE-2026-73605

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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