What’s Vulnerable › Vulnerabilities

CVE-2026-59834: SiYuan: SQL Query in Block Search Exposes Hidden Published Document Content

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-09 · updated 2026-10-25
• Weakness: CWE-89

Description

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, the block search endpoint POST /api/search/fullTextSearchBlock concatenates attacker-controlled paths values into SQL predicates used by non-SQL search modes, allowing an unauthenticated publish visitor to inject a UNION SELECT and return rows from hidden documents by projecting an allowed visible box and path. This issue is fixed in versions 3.7.1.

Affected products

• siyuan-note siyuan: before 3.7.1

References

• https://github.com/siyuan-note/siyuan/commit/57bcad4b331836880bfe6be25d4180bdcf10db0d
• https://github.com/siyuan-note/siyuan/commit/d0f0fe146fb07d594fcadc4f48d4f7c30ac01d1e
• https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h89q-4j2h-7h88
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h89q-4j2h-7h88

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