Is CVE-2026-116168 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-116168?

CVE-2026-116168 has a CVSS v3 severity of MEDIUM (6.2).

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CVE-2026-116168

Description

SiYuan before 3.8.7 contains a path traversal vulnerability in the MCP asset tool because validateAssetUploadPaths relies on an incomplete sensitive-path blacklist that omits .env and other secret files. Authenticated attackers driving the MCP asset upload action can copy such local files into the workspace and read them back via /assets/ over HTTP.