6.9
MEDIUM CVSS 4.0
CVE-2026-60083
SiYuan before v3.8.0 Incomplete Path Blocklist via MCP file tool
Description

SiYuan versions before v3.8.0 contain an incomplete path blocklist in the MCP file tool that fails to restrict access to sensitive workspace files protected by the HTTP API. Authenticated administrators can read plaintext publish-mode passwords from data/.siyuan/publishAccess.json and access other sensitive files like data/templates and data/snippets/conf.json.

INFO

Published Date :

Aug. 22, 2026, 1:16 p.m.

Last Modified :

Oct. 12, 2026, 4:10 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-60083 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 B3log siyuan
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM MITRE-CVE
CVSS 4.0 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 MEDIUM [email protected]
Solution
Update SiYuan to v3.8.0 or later to fix path traversal vulnerability in MCP file tool.
  • Update SiYuan to version 3.8.0 or later.
  • Verify MCP file tool access controls.
  • Restrict access to sensitive configuration files.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-60083.

URL Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c8r8-95hg-mp34
https://www.vulncheck.com/advisories/siyuan-before-incomplete-path-blocklist-via-mcp-file-tool
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-60083 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-60083 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-60083 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-60083 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Translated by [email protected]

    Oct. 12, 2026

    Action Type Old Value New Value
    Added Translation Title: siyuan de siyuan-note, Description: Versiones de SiYuan anteriores a la v3.8.0 contienen una lista negra de rutas incompleta en la herramienta de archivos MCP que no restringe el acceso a archivos sensibles del espacio de trabajo protegidos por la API HTTP. Administradores autenticados pueden leer contraseñas en texto plano del modo de publicación de data/.siyuan/publishAccess.json y acceder a otros archivos sensibles como data/templates y data/snippets/conf.json.
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 24, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-60083', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-24T18:40:48.540853Z'}
  • New CVE Received by [email protected]

    Aug. 22, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'siyuan-note', 'product': 'siyuan', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.8.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '3.8.0', 'versionType': 'semver'}], 'packageURL': 'pkg:golang/github.com/siyuan-note/siyuan', 'defaultStatus': 'unaffected'}]
    Added Description SiYuan versions before v3.8.0 contain an incomplete path blocklist in the MCP file tool that fails to restrict access to sensitive workspace files protected by the HTTP API. Authenticated administrators can read plaintext publish-mode passwords from data/.siyuan/publishAccess.json and access other sensitive files like data/templates and data/snippets/conf.json.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-863
    Added Reference https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c8r8-95hg-mp34
    Added Reference https://www.vulncheck.com/advisories/siyuan-before-incomplete-path-blocklist-via-mcp-file-tool
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.