Vulnerability · Published Mar 26, 2026 · Assigned by GitHub_M

CVE-2026-33670SiYuan has directory traversal within its publishing service

Critical 9.8

In plain English

A critical-severity path traversal in siyuan from siyuan-note. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 47.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/siyuan-note/siyuan/kernelno fix listedGHSA-xmw9-6r43-x9ww
Gogithub.com/siyuan-note/siyuan/kernelno fix listedGO-2026-4843

Affected products (as reported)

VendorProductVersions
siyuan-note siyuan < 3.6.2

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References