medium5.8
CVE-2026-73605
SiYuan: getUniqueFilename passes an unvalidated client-supplied path to the filesystem, giving anonymous readers an existence oracle over the entire host filesystem
Impact
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
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/siyuan-note/siyuan/kernel | < 0.0.0-20260812083335-251596fc0de2 | 0.0.0-20260812083335-251596fc0de2 |