{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/siyuan-note/siyuan/kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.0.0-20251202123337-6ef83b42c7ce"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-09T17:18:16Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Summary\nSiyuan is vulnerable to RCE. The issue stems from a \"Zip Slip\" vulnerability during zip file extraction, combined with the ability to overwrite system executables and subsequently trigger their execution.\n\n### Steps to reproduce\n1. Authenticate\n2. Create zip slip payload with path traversal entry `../../../../opt/siyuan/startup.sh`. startup.sh contains malicious code like:\n```bash\n#!/bin/sh\necho \u0027you have been pwned\u0027 \u003e /siyuan/workspace/data/pwned.txt\necho \"pandoc 3.1.0\"\n```\n3. Upload zip to workspace via `/api/file/putFile`\n4. Extract zip via `/api/archive/unzip`, overwrites the existing executable `startup.sh` while maintaining the +x permission\n5. Trigger execution by calling `/api/setting/setExport` with `pandocBin=/opt/siyuan/startup.sh`. This calls `IsValidPandocBin()` which executes `startup.sh --version` that outputs \"pandoc 3.1.0\" and executes any arbitrary malicious code",
  "id": "GHSA-4r66-7rcv-x46x",
  "modified": "2025-12-09T17:18:16Z",
  "published": "2025-12-09T17:18:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-4r66-7rcv-x46x"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/siyuan-note/siyuan"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "SiYuan vulnerable to RCE via zip slip and Command Injection via PandocBin"
}