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CVE-2026-41894

Published Apr 24, 2026 CWE-22 EPSS 0.31% (24th pctl)

Overview

CVE-2026-41894 is a known-severity vulnerability. It was published on April 24, 2026.

Technical 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 — 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHub github.com/siyuan-note/siyuan/commit/bb481e1290c4a34255652ede85a546504505d2a7 GitHub github.com/siyuan-note/siyuan/releases/tag/v3.6.5 GitHub github.com/siyuan-note/siyuan/security/advisories/GHSA-hjh7-r5w8-5872 GitHub github.com/siyuan-note/siyuan/security/advisories/GHSA-hjh7-r5w8-5872

Frequently Asked Questions

What is CVE-2026-41894?

CVE-2026-41894 is a known-severity vulnerability. It was published on April 24, 2026.

How severe is CVE-2026-41894?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-41894?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-41894?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-41894 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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HackBrowser

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