PT-2026-83085

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.8.1 Description A path traversal issue exists in the asset.upload MCP tool, which allows the use of arbitrary absolute file paths because it lacks workspace boundary validation. Through prompt injection, an attacker...

CVE-2026-82233: Improper Limitation of a Pathname to a Restricted Directory

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 t...