Access Control Vulnerability in SiYuan Knowledge Management System
CVE-2026-45148

4.3MEDIUM

Key Information:

Vendor

Siyuan-note

Status
Siyuan
Vendor
CVE Published:
14 May 2026

What is CVE-2026-45148?

The SiYuan Knowledge Management System, an open-source tool used for personal knowledge management, has a broken access control vulnerability affecting versions prior to 3.7.0. This flaw allows unauthorized users to enumerate metadata from documents that should be hidden from the publish service. By exploiting this vulnerability, attackers could potentially gain access to sensitive information not intended for public visibility. Users are advised to upgrade to version 3.7.0 or later to mitigate this risk.

Affected Version(s)

siyuan < 3.7.0

References

https://github.com/siyuan-note/siyuan/security/advisories...
x_refsource_CONFIRM

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.