VULNERABILITY INTELLIGENCE
CVE-2026-82233
CVSS score5.7 MEDIUM
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-08-31
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
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.
Weakness classification
- disclosure@vulncheck.com: CWE-22