SQL Injection Vulnerability in SiYuan by SiYuan Technology
CVE-2026-69083

9.9CRITICAL

Key Information:

Vendor

Siyuan-note

Status
Siyuan
Vendor
CVE Published:
3 August 2026

What is CVE-2026-69083?

SiYuan versions prior to v3.7.3 are vulnerable to SQL injection through the fullTextSearchAssetContent endpoint, which can be accessed by unauthenticated users. This vulnerability allows attackers to exploit unescaped method parameters and REGEXP clauses, resulting in the execution of arbitrary SQL queries on the asset-content database. Consequently, threat actors can read, modify, or delete data across notebooks, posing significant risks to data integrity and confidentiality.

Affected Version(s)

siyuan 0 < 3.7.3

siyuan 3.7.3

References

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

CVSS V4

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Shirshakhtml
.