What is GHSA-659w-8mpv-qcqc?

GHSA-659w-8mpv-qcqc is a security advisory published by GitHub Security Advisories with Medium severity. SiYuan before 3.8.7 contains a path traversal vulnerability in the MCP asset tool because...

Which CVE IDs does GHSA-659w-8mpv-qcqc cover?

GHSA-659w-8mpv-qcqc covers the following CVE IDs: CVE-2026-116168. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-659w-8mpv-qcqc?

GHSA-659w-8mpv-qcqc has a CVSS v3 base score of 6.2, published by GitHub Security Advisories.

GHSA-659w-8mpv-qcqcMediumCVSS 6.2

SiYuan before 3.8.7 contains a path traversal vulnerability in the MCP asset tool because...

Vendor

GitHub Security Advisories

Published

October 25, 2026

Last Modified

October 25, 2026

🔗 CVE IDs covered (1)

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.

🔗 References (4)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w
https://nvd.nist.gov/vuln/detail/CVE-2026-116168
https://www.vulncheck.com/advisories/siyuan-before-3.8.7-path-traversal-local-file-read-via-mcp-asset-tool
https://github.com/advisories/GHSA-659w-8mpv-qcqc