---
id: CVE-2026-103763
title: >-
  SiYuan before v3.8.5 contains an information disclosure vulnerability that
  allows read-only publish readers to learn metadata of publish-excluded
  documents through the getNotebookInfo endpoint
summary: >-
  SiYuan before v3.8.5 contains an information disclosure vulnerability that
  allows read-only publish readers to learn metadata of publish-excluded
  documents through the getNotebookInfo endpoint. Attackers, including anonymous
  visitors whe…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-200
vendor: siyuan-note
product: siyuan
affected:
  - siyuan < 3.8.5
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T12:17:10.390'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103763'
references:
  - url: >-
      https://github.com/siyuan-note/siyuan/security/advisories/GHSA-ccxp-q3vg-jvgj
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/siyuan-before-3.8.5-information-disclosure-via-api-notebook-getnotebookinfo
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-02T12:17:44.325Z'
---

## Overview

SiYuan before v3.8.5 contains an information disclosure vulnerability that allows read-only publish readers to learn metadata of publish-excluded documents through the getNotebookInfo endpoint. Attackers, including anonymous visitors when no reader password is set, can query publish-visible notebooks to obtain document count, size and modification timestamps of hidden documents.

## Remediation

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