๐Ÿ›ก๏ธ CVE-2026-41894
๐ŸŸ  CVSS 8.0 โ€” High โœ… No Known Exploit CWE-22 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

SiYuan is an open-source personal knowledge management system. Prior to 3.6.5, the fix for CVE-2026-30869 only added a denylist check (IsSensitivePath) but did not address the root cause โ€” a redundant url.PathUnescape() call in serveExport(). An authenticated attacker can use double URL encoding (%252e%252e) to traverse directories and read arbitrary workspace files including the full SQLite database (siyuan.db), kernel log, and all user documents. This vulnerability is fixed in 3.6.5.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE CWE-22
Public Exploit โœ… No
Source NVD
Published 2026-04-22
Updated 2026-06-02
Modified 2026-05-05
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/siyuan-note/siyuan/kernel โ€” โ€”
unknown โ€” โ€”

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