---
id: GHSA-x8p6-569w-fmmr
title: >-
  Duplicate Advisory: SiYuan: Cross-Site WebSocket Hijacking on the admin-only
  network proxy endpoint (`/ws/network/proxy`) via explicit `CheckOrigin: true`
  bypass
summary: >-
  Duplicate Advisory: SiYuan: Cross-Site WebSocket Hijacking on the admin-only
  network proxy endpoint (`/ws/network/proxy`) via explicit `CheckOrigin: true`
  bypass
severity: low
cvss: 8.2
cwe:
  - CWE-346
vendor: siyuan-note
product: github.com/siyuan-note/siyuan/kernel
ecosystem: go
affected:
  - github.com/siyuan-note/siyuan/kernel < 0.0.0-20260803045322-cb67e0b4fab5
published: '2026-08-17'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T22:45:50Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-x8p6-569w-fmmr'
references:
  - url: >-
      https://github.com/siyuan-note/siyuan/security/advisories/GHSA-3cc2-h3v6-rqpq
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74802'
  - url: >-
      https://www.vulncheck.com/advisories/siyuan-cross-site-websocket-hijacking-via-network-proxy
  - url: 'https://github.com/advisories/GHSA-x8p6-569w-fmmr'
tags:
  - ghsa
  - go
ingestedAt: '2026-10-02T23:34:57.398Z'
---

## Overview

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-3cc2-h3v6-rqpq. This link is maintained to preserve external references.

## Original Description
SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket connections to this endpoint and direct the SiYuan kernel process to proxy arbitrary network traffic to attacker-chosen targets, enabling authenticated network pivoting through the victim's machine.

## Affected packages

- `github.com/siyuan-note/siyuan/kernel < 0.0.0-20260803045322-cb67e0b4fab5`

## Remediation

Refer to the advisory for the patched release.