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Vulnerability record · CVE-2026-54066 · published 24 June 2026

CVE-2026-54066: Path traversal vulnerability

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.

7.5 CVSS 3.1 High EPSS 2.4% · top 16.7% CWE-22 · Path traversalCWE-23 · Relative path traversal Deferred
7.5CVSS 3.1 base score
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
25 Jun 2026Last modified by NVD

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.

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

References

LinkTags
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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Source: NIST National Vulnerability Database (record CVE-2026-54066), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.