CVE-2026-72804

HIGH 8.6

SiYuan before v3.7.4 Authentication Bypass via Graph Endpoints

CVSS Score

8.6

EPSS Score

0.0%

EPSS Percentile

0th

SiYuan versions before v3.7.4 fail to validate publish-password tier in getGraph and getLocalGraph endpoints, allowing anonymous readers to retrieve block-level content of password-protected documents. Attackers can call these endpoints without supplying a password to read protected document content and the complete reference topology.

CWE	CWE-200
Vendor	siyuan-note
Product	siyuan
Published	Aug 12, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

siyuan-note / siyuan

0 < 3.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vpjw-wf5h-cgpq vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-authentication-bypass-via-graph-endpoints

Credits

🔍 Shirshakhtml