CVE-2026-73605

Medium

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.

SeverityMedium

CVSS5.8

Exploit probability—

ProductGithub.com/siyuan-note/siyuan/kernel

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

github.com/siyuan-note/siyuan/kernel0.0.0-20260812083335-251596fc0de2 or later

Vendor advisories

github.com/siyuan-note/siyuan/security/advisories/GHSA-hf8h-97gm-4x2p

Affected products

Product	Affected versions	Fixed in
github.com/siyuan-note/siyuan/kernelGo	v < 0.0.0-20260812083335-251596fc0de2	0.0.0-20260812083335-251596fc0de2

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