FKIE_CVE-2026-32749

Vulnerability from fkie_nvd - Published: 2026-03-19 21:17 - Updated: 2026-03-23 18:08
Severity ?
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
SiYuan is a personal knowledge management system. In versions 3.6.0 and below, POST /api/import/importSY and POST /api/import/importZipMd write uploaded archives to a path derived from the multipart filename field without sanitization, allowing an admin to write files to arbitrary locations outside the temp directory - including system paths that enable RCE. This can lead to aata destruction by overwriting workspace or application files, and for Docker containers running as root (common default), this grants full container compromise. This issue has been fixed in version 3.6.1.
References
security-advisories@github.comhttps://github.com/siyuan-note/siyuan/commit/5ee00907f0b0c4aca748ce21ef1977bb98178e14Patch
security-advisories@github.comhttps://github.com/siyuan-note/siyuan/releases/tag/v3.6.1Release Notes
security-advisories@github.comhttps://github.com/siyuan-note/siyuan/security/advisories/GHSA-qvvf-q994-x79vExploit, Vendor Advisory
Impacted products
Vendor Product Version
b3log siyuan *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E1AA6470-222A-4841-A487-DF65F9859780",
              "versionEndExcluding": "3.6.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SiYuan is a personal knowledge management system. In versions 3.6.0 and below, POST /api/import/importSY and POST /api/import/importZipMd write uploaded archives to a path derived from the multipart filename field without sanitization, allowing an admin to write files to arbitrary locations outside the temp directory - including system paths that enable RCE. This can lead to aata destruction by overwriting workspace or application files, and for Docker containers running as root (common default), this grants full container compromise. This issue has been fixed in version 3.6.1."
    },
    {
      "lang": "es",
      "value": "SiYuan es un sistema de gesti\u00f3n de conocimiento personal. En las versiones 3.6.0 e inferiores, POST /API/import/importSY y POST /API/import/importZipMd escriben archivos subidos a una ruta derivada del campo de nombre de archivo multipart sin sanitizaci\u00f3n, permitiendo a un administrador escribir archivos en ubicaciones arbitrarias fuera del directorio temporal, incluyendo rutas del sistema que permiten RCE. Esto puede llevar a la destrucci\u00f3n de datos al sobrescribir archivos de espacio de trabajo o de aplicaci\u00f3n, y para contenedores Docker que se ejecutan como root (valor predeterminado com\u00fan), esto otorga un compromiso total del contenedor. Este problema ha sido solucionado en la versi\u00f3n 3.6.1."
    }
  ],
  "id": "CVE-2026-32749",
  "lastModified": "2026-03-23T18:08:07.067",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-19T21:17:10.910",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/siyuan-note/siyuan/commit/5ee00907f0b0c4aca748ce21ef1977bb98178e14"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-qvvf-q994-x79v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-73"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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