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High · 7.5 CVE-2026-100644 EUVD-2026-87738GHSA-hvf4-6hmp-9mpm

SiYuan before v3.8.4 SQL Injection via dailyNoteSavePath

Published Sep 26, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
siyuan-note siyuan < 3.8.4 3.8.4

References