---
id: CVE-2026-116170
title: SiYuan before v3.8.7 SQL Injection via History Search op and query
summary: >-
  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 getHi…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-89
vendor: siyuan-note
product: siyuan
affected:
  - siyuan < 3.8.7
published: '2026-10-25'
updated: '2026-10-25'
sourceUpdated: '2026-10-25T14:27:42.570Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116170'
references:
  - url: >-
      https://github.com/siyuan-note/siyuan/security/advisories/GHSA-4hjx-84f6-gr7c
    label: GitHub Security Advisory (GHSA-4hjx-84f6-gr7c)
  - url: >-
      https://www.vulncheck.com/advisories/siyuan-before-3.8.7-sql-injection-via-history-search-op-and-query
    label: >-
      VulnCheck Advisory: SiYuan before v3.8.7 SQL Injection via History Search
      op and query
tags:
  - cve.org
ingestedAt: '2026-10-25T22:08:29.935Z'
---

## Overview

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.

## Affected

- `siyuan < 3.8.7`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.