All vulnerabilities
CVE-2026-100644GHSA-xr4h-j7cg-q8pc

SiYuan before v3.8.4 SQL Injection via dailyNoteSavePath

siyuan-note siyuan
Open in ThreatlineRecord JSON
CVSS
8.7High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 28 Sep 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 25% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.8.4Fixed versionCVE List
Published26 Sep 2026Updated 8 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

SiYuan before v3.8.4 contains a SQL injection vulnerability in the graph query endpoint where the dailyNoteSavePath parameter is concatenated into SQL without escaping. Unauthenticated attackers on published sites with auth disabled can inject SQL via UNION SELECT to extract arbitrary database rows from all notebooks.

Text from CVE List

Affected versions 2

  • siyuanaffected: all versions before 3.8.4CVE List
  • siyuanunaffected: 3.8.4CVE List

References 2