Medium severity · published Oct 25, 2026
CVE-2026-116170
SiYuan before v3.8.7 SQL Injection via History Search op and query
New
4.9
CVSS
0.4%
EPSS
No
On KEV
Description
SiYuan before v3.8.7 contains an sql injection vulnerability that allows admin-token holders to read history.db by injecting unescaped op and type=3 query values. Attackers can send crafted UNION SELECT payloads to searchHistory or getHistoryItems endpoints to exfiltrate deleted document content, titles, and paths.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
siyuan · siyuan-note
before 3.8.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116170
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116170
github.com
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-4hjx-84f6-gr7c
www.vulncheck.com
https://www.vulncheck.com/advisories/siyuan-before-3.8.7-sql-injection-via-history-search-op-and-query
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