CVE-2026-25992
HIGHSiYuan < 3.5.5 - Path Traversal via Case-Insensitive Path Bypass
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-f72r-2h5j-7639
Release Notes x_refsource_misc
https://github.com/siyuan-note/siyuan/releases/tag/v3.5.5
Scores
CVSS v3
7.5
EPSS
0.0050
EPSS Percentile
39.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (2)
b3log/siyuan
< 3.5.5
siyuan-note/siyuan
0Go
Published
Feb 10, 2026
Tracked Since
Feb 18, 2026