---
id: GHSA-69jp-f2p8-9vrg
title: >-
  Duplicate Advisory: 17 block metadata/content endpoints in kernel/api/block.go
  have zero publish-access filtering, reachable by anonymous publish-mode
  readers
summary: >-
  Duplicate Advisory: 17 block metadata/content endpoints in kernel/api/block.go
  have zero publish-access filtering, reachable by anonymous publish-mode
  readers
severity: high
cvss: 7.5
cwe:
  - CWE-862
vendor: siyuan-note
product: github.com/siyuan-note/siyuan/kernel
ecosystem: go
affected:
  - github.com/siyuan-note/siyuan/kernel < 3.7.4
published: '2026-08-18'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T22:56:15Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-69jp-f2p8-9vrg'
references:
  - url: >-
      https://github.com/siyuan-note/siyuan/security/advisories/GHSA-4vpg-gwqq-w44c
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74904'
  - url: >-
      https://www.vulncheck.com/advisories/siyuan-before-missing-authorization-via-block-api
  - url: 'https://github.com/advisories/GHSA-69jp-f2p8-9vrg'
tags:
  - ghsa
  - go
ingestedAt: '2026-10-02T23:34:57.397Z'
---

## Overview

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-4vpg-gwqq-w44c. This link is maintained to preserve external references.

## Original Description
SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go (including getRefText, checkBlockExist, and getBlockBreadcrumb). These handlers are gated only by basic authentication (model.CheckAuth) and lack publish-access filtering, allowing anonymous publish-mode readers to disclose private block content-derived text, structural metadata, and existence information for arbitrary block IDs across the workspace.

## Affected packages

- `github.com/siyuan-note/siyuan/kernel < 3.7.4`

## Remediation

Refer to the advisory for the patched release.