CVE-2026-54066

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

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

2.4% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-25)

CWEs

CWE-22, CWE-23, CWE-1188

Published

2026-06-24

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

Packages (OSV)

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4m3-mgmm-c664
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4m3-mgmm-c664

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