CVE-2026-25992

SiYuan is a personal knowledge management system. Prior to 3.5.5, the /api/file/getFile endpoint uses case-sensitive string equality checks to block access to sensitive files. On case-insensitive file systems such as Windows, attackers can bypass restrictions using mixed-case paths and read protected configuration files. This vulnerability is fixed in 3.5.5.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/releases/tag/v3.5.5	Product Release Notes
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-f72r-2h5j-7639	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-10 18:16

Updated : 2026-02-23 17:58

NVD link : CVE-2026-25992

Mitre link : CVE-2026-25992

CVE.ORG link : CVE-2026-25992

JSON object : View

Products Affected

b3log

siyuan

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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