Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck

CVE-2026-73605SiYuan before v3.7.4 Path Traversal via getUniqueFilename

Medium 5.8

In plain English

A medium-severity missing authorization in siyuan from siyuan-note. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.3%top 74.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260812083335-251596fc0de2	GHSA-hf8h-97gm-4x2p
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260812083335-251596fc0de2	GO-2026-6626

Affected products (as reported)

Vendor	Product	Versions
siyuan-note	siyuan	0 – before 3.7.4

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-hf8h-97gm-4x2p) vendor-advisory
VulnCheck Advisory: SiYuan before v3.7.4 Path Traversal via getUniqueFilename third-party-advisory