CVE-2026-33476highCWE-22CWE-73

CVE-2026-33476: high-severity vulnerability in siyuan-note siyuan

SiYuan has an Unauthenticated Arbitrary File Read via Path Traversal

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36Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 7.5epss 3.3%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
siyuan-note · siyuan
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