CVE-2026-82233
MEDIUM
NVD
CVSS Score
5.7
Severity
MEDIUM
Published
Aug 28, 2026
Vendor
unknown
Description
SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into the asset directory through prompt injection.