CVE-2026-25992

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-22

Affected software

Vendor	Product	Versions
siyuan-note	siyuan	< 3.5.5

References

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

Timeline

Published: Feb 10, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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