CVE-2026-33476
SiYuan is a personal knowledge management system.
Published Mar 20, 2026 · updated Jun 17, 2026 · b3log siyuan
SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated file-serving endpoint under 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.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Mar 20, 2026 · NIST NVD
Detected
SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated file-serving endpoint under 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.
Jun 17, 2026 · NIST NVD
Updated
SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated file-serving endpoint under 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.
Affected
- cpe b3log/siyuanversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33476
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33476
SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated file-serving endpoint under Due to improper path sanitization, attackers can perform directory traversal and read arbitrary files access
nvd.nist.gov