CVE-2026-73605

MEDIUM 5.8

SiYuan before v3.7.4 Path Traversal via getUniqueFilename

CVSS Score

5.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	siyuan-note
Product	siyuan
Published	Aug 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

siyuan-note / siyuan

0 < 3.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 Shirshakhtml