Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-c8r8-95hg-mp34

SiYuan: MCP file tool's blocklist is incomplete relative to the HTTP file API it claims to align with, exposing publish-mode passwords and other sensitive workspace files

CVSS 6.9 MediumEPSS 0.0039 · 33rd percentile

Published by the GitHub Advisory Database at 27 Oct 2026, 14:43 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/siyuan-note/siyuan/kernelGo<0.0.0-20260808051406-3542530c505f0.0.0-20260808051406-3542530c505f
Identifiers
GHSA-c8r8-95hg-mp34 · CVE-2026-60083 · GO-2026-6863
Weakness (CWE)
CWE-863
Tags
Published
27 Oct 2026
Updated
5 Nov 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Record GHSA-c8r8-95hg-mp34 concerns the SiYuan kernel Go package, affected at versions before 0.0.0-20260808051406-3542530c505f and fixed in that version. The MCP file tool's sensitive-path blocklist covers only one of the four entries enforced by the HTTP file API, so an authenticated administrator-level MCP client can read files such as data/.siyuan/publishAccess.json, which holds publish-mode access passwords. Upgrade to 0.0.0-20260808051406-3542530c505f or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.9 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0039, the 33rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:11 UTC First seen by agentprime
  2. 31 Oct 2026, 14:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.