Information Disclosure Vulnerability in SiYuan by SiYuan Note
CVE-2026-72795

9.2CRITICAL

Key Information:

Vendor

Siyuan-note

Status
Siyuan
Vendor
CVE Published:
12 August 2026

What is CVE-2026-72795?

The SiYuan software, specifically versions prior to v3.7.4, has a significant information disclosure vulnerability. This weakness arises from the failure to adequately filter embedded block content by publish access within the getBlockDOMWithEmbed and getBlockDOMsWithEmbed endpoints. As a result, attackers are able to exploit this flaw to make unauthorized requests for published blocks containing embedded queries. Consequently, they could gain access to sensitive information from password-protected, hidden, or otherwise restricted documents.

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:
9.2
Severity:
CRITICAL
Confidentiality:
High
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
.