High severity · published Jul 9, 2026
CVE-2026-59834
SiYuan: SQL Query in Block Search Exposes Hidden Published Document Content
7.5
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
siyuan · siyuan-note
< 3.7.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59834
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59834
github.com
https://github.com/siyuan-note/siyuan/commit/57bcad4b331836880bfe6be25d4180bdcf10db0d
github.com
https://github.com/siyuan-note/siyuan/commit/d0f0fe146fb07d594fcadc4f48d4f7c30ac01d1e
github.com
https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1
github.com
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h89q-4j2h-7h88
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