High severity7.5NVD Advisory· Published Mar 20, 2026· Updated Jun 17, 2026
CVE-2026-33476
CVE-2026-33476
Description
SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated file-serving endpoint under /appearance/*filepath. Due to improper path sanitization, attackers can perform directory traversal and read arbitrary files accessible to the server process. Authentication checks explicitly exclude this endpoint, allowing exploitation without valid credentials. Version 3.6.2 fixes this issue.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/siyuan-note/siyuan/kernelGo | <= 0.0.0-20260317012524-fe4523fff2c8 | — |
Affected products
4- ghsa-coords3 versionspkg:golang/github.com/siyuan-note/siyuan/kernelpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0
<= 0.0.0-20260317012524-fe4523fff2c8+ 2 more
- (no CPE)range: <= 0.0.0-20260317012524-fe4523fff2c8
- (no CPE)range: < 0.0.20260326T203309-150000.1.155.2
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- Range: < 3.6.2
Patches
Vulnerability mechanics
References
4- github.com/siyuan-note/siyuan/commit/009bb598b3beccc972aa5f1ed88b3b224326bf2anvdPatchWEB
- github.com/siyuan-note/siyuan/security/advisories/GHSA-hhgj-gg9h-rjp7nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-hhgj-gg9h-rjp7ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33476ghsaADVISORY
News mentions
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