GHSA-cm9f-w4h4-7j85: Duplicate Advisory Remote Code Execution Vulnerability

MODERATE
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CVSS 5.8
CWE-862
Published
Advisory Summary

GHSA-cm9f-w4h4-7j85 is a MODERATE (CVSS 5.8) remote code execution vulnerability (CWE-862: Missing Authorization) affecting Duplicate Advisory libraries in the Go ecosystem. The issue involves static-file routes bypass the publish-access controls enforced on the rest api, exposing templates, snippets and export artifacts to anonymous readers. Remediation is available in the latest vendor maintenance releases.

GHSA-cm9f-w4h4-7j85 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-cm9f-w4h4-7j85
Severity MODERATE
CVSS v3.1 Base Score 5.8
CWE Classification CWE-862: Missing Authorization
Affected Product Duplicate Advisory
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix GHSA-cm9f-w4h4-7j85

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/siyuan-note/siyuan/kernel fixed: Latest secure release 
Upgrade github.com/siyuan-note/siyuan/kernel to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/siyuan-note/siyuan/kernel

How to Check if You Are Affected

To determine whether your application is affected by GHSA-cm9f-w4h4-7j85, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for github.com/siyuan-note/siyuan/kernel

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-fgmr-7w36-9qfq. This link is maintained to preserve external references. ## Original Description SiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mux bypass publish-access controls enforced on the REST API. Attackers with publish reader tokens or anonymous access in disabled-auth mode can read templates, snippets, and export artifacts by directly accessing static routes that lack the same restrictions as their REST API counterparts.

GHSA-cm9f-w4h4-7j85 Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
github.com/siyuan-note/siyuan/kernel
golang/github.com/siyuan-note/siyuan/kernel
Go
≤ 3.7.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fgmr-7w36-9qfq
NVD — GHSA-cm9f-w4h4-7j85 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72796
www.vulncheck.com/advisories/siyuan-b... WEB
https://www.vulncheck.com/advisories/siyuan-before-access-control-bypass-via-static-routes

Frequently Asked Questions

What is GHSA-cm9f-w4h4-7j85?
GHSA-cm9f-w4h4-7j85 is a security vulnerability in Duplicate Advisory involving Static-file routes bypass the publish-access controls enforced on the REST API, exposing templates, snippets and export artifacts to anonymous readers under CWE-862: Missing Authorization.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: github.com/siyuan-note/siyuan/kernel.
What version fixes GHSA-cm9f-w4h4-7j85?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/siyuan-note/siyuan/kernel affected?
Yes, github.com/siyuan-note/siyuan/kernel is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-cm9f-w4h4-7j85?
GHSA-cm9f-w4h4-7j85 has a CVSS v3.1 base score of 5.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.
What CWE is associated with GHSA-cm9f-w4h4-7j85?
GHSA-cm9f-w4h4-7j85 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Go dependencies for GHSA-cm9f-w4h4-7j85?
Run the dependency tree command: 'inspect dependencies for github.com/siyuan-note/siyuan/kernel'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cm9f-w4h4-7j85",
  "modified" : "2026-09-04T21:02:10Z",
  "published" : "2026-08-12T21:31:41Z",
  "withdrawn" : "2026-09-04T21:02:10Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Static-file routes bypass the publish-access controls enforced on the REST API, exposing templates, snippets and export artifacts to anonymous readers",
  "details" : "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-fgmr-7w36-9qfq. This link is maintained to preserve external references.\n\n## Original Description\nSiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mux bypass publish-access controls enforced on the REST API. Attackers with publish reader tokens or anonymous access in disabled-auth mode can read templates, snippets, and export artifacts by directly accessing static routes that lack the same restrictions as their REST API counterparts.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/siyuan-note/siyuan/kernel"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.7.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fgmr-7w36-9qfq"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72796"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/siyuan-before-access-control-bypass-via-static-routes"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-04T21:02:10Z",
    "nvd_published_at" : "2026-08-12T20:17:51Z"
  }
}