Information Disclosure Vulnerability in SiYuan by SiYuan Technologies
CVE-2026-73609

6.9MEDIUM

Key Information:

Vendor

Siyuan-note

Status
Siyuan
Vendor
CVE Published:
13 August 2026

What is CVE-2026-73609?

SiYuan versions prior to v3.7.4 exhibit an information disclosure vulnerability within the getBookmarkLabels endpoint. This vulnerability allows unauthorized users, including anonymous readers and those in publish mode, to access all bookmark labels within the workspace without proper access controls. As a result, sensitive subject matter and details about organizational documents can be exposed, posing significant risks related to data privacy and confidentiality.

Affected Version(s)

siyuan 0 < 3.7.4

siyuan 3.7.4

References

https://github.com/siyuan-note/siyuan/security/advisories...
vendor-advisory
https://www.vulncheck.com/advisories/siyuan-before-inform...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Shirshakhtml
.