CVE-2026-25992

Name: CVE-2026-25992
Creator: NVD / NIST
Published: 2026-02-10T18:16:38.807+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2026-25992 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

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

7.5/10

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

EPSS Probability

0.51%

39.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
B3log	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
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-25992?

How severe is CVE-2026-25992?

CVE-2026-25992 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2026-25992?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-25992?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST