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.

References

https://www.vulncheck.com/advisories/siyuan-before-path-traversal-via-getuniquefilename

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-57809

Details

Source: Mitre, NVD

Published: 2026-08-13

Updated: 2026-10-24

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.8

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

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00325