CVE-2026-54066
SiYuan: Path Traversal via Double URL Encoding in /assets/*path (publish mode arbitrary file─read)
Vexday Risk Score
36Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 7.5EPSS 1.9%KEV nãoPoC —Nuclei simMetasploit —Patch —
Lifecycle
24 Jun 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
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