CVE-2026-54066 (GCVE-0-2026-54066)

Vulnerability from cvelistv5 – Published: 2026-06-24 21:13 – Updated: 2026-06-25 12:33
VLAI
Title
SiYuan: Path Traversal via Double URL Encoding in /assets/*path (publish mode arbitrary file─read)
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 12:33 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-23 - Relative Path Traversal
  • CWE-1188 - Insecure Default Initialization of Resource
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
siyuan-note siyuan Affected: < 3.7.0
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