Auth bypass in Siyuan-Note Siyuan

CVE-2026-60083

SiYuan versions before v3.8.0 contain an incomplete path blocklist in the MCP file tool that fails to restrict access to sensitive workspace files protected by the HTTP API. Authenticated administrators can read plaintext publish-mode passwords from data/.siyuan/publishAccess.json and access other sensitive files like data/templates and data/snippets/conf.json.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-60083?
CVE-2026-60083 is a medium-severity vulnerability in Siyuan-Note Siyuan, classified under Incorrect Authorization. CVSS score: 4.9/10. Published 2026-08-22.
How severe is CVE-2026-60083?
Medium severity. CVSS v3 base score is 4.9 out of 10.