CVE-2026-73605CWE-862broken-access-control

CVE-2026-73605

Medium · published August 13, 2026

CVSS v3.1
5.8
EPSS
0%
Percentile
24.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00325 · 24.3th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-13T16:17Z
References (2)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hf8h-97gm-4x2p · [email protected]https://www.vulncheck.com/advisories/siyuan-before-path-traversal-via-getuniquefilename · [email protected]
EPSS history
Timeline
  • 13 AUG 11:28Z
    SiYuan before v3.7.4 Path Traversal via getUniqueFilename
    cvelistv5