CVE-2026-54066

High

Description

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the patch for CVE-2026-41894 ("Path Traversal via Double URL Encoding") sanitized the /export/ route but the identical root cause remains in the /assets/*path route. In publish mode (anonymous read-only HTTP endpoint, default port 6808), an unauthenticated remote attacker can read arbitrary files inside WorkspaceDir — including conf/conf.json (which contains the AccessAuthCode SHA256 hash, API token, and sync keys), temp/siyuan.db, temp/blocktree.db, and siyuan.log — by double-URL-encoding .. segments. This vulnerability is fixed in 3.7.0.

SeverityHigh
CVSS7.5
Exploit probability—
ProductGithub.com/siyuan-note/siyuan/kernel
PublishedJun 24, 2026
First seenJun 24, 2026

How to fix

Update
  • github.com/siyuan-note/siyuan/kernel0.0.0-20260628153353-2d5d72223df4 or later

Affected products

ProductAffected versionsFixed in
github.com/siyuan-note/siyuan/kernelGov < 0.0.0-20260628153353-2d5d72223df40.0.0-20260628153353-2d5d72223df4

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-54066 · Github.com/siyuan-note/siyuan/kernel · Dark Radar