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CVE-2025-49595

Estado: AnalizadaMedia (4.9)—

n8n is a workflow automation platform. Prior to version 1.99.0, there is a denial of Service vulnerability in /rest/binary-data endpoint when processing empty filesystem URIs (filesystem:// or filesystem-v2://). This allows authenticated attackers to cause service unavailability through malformed filesystem URI requests, effecting the /rest/binary-data endpoint and n8n.cloud instances (confirmed HTTP/2 524 timeout responses). Attackers can exploit this by sending GET requests with empty filesystem URIs (filesystem:// or filesystem-v2://) to the /rest/binary-data endpoint, causing resource exhaustion and service disruption. This issue has been patched in version 1.99.0.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

N8N — N8N

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-49595",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "ssvcData": {
          "id": "CVE-2025-49595",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-03T13:10:37.624242Z"
        }
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    ],
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        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 1.2
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  "published": "2025-07-03T13:15:28.690",
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      "url": "https://github.com/n8n-io/n8n/commit/43c52a8b4f844e91b02e3cc9df92826a2d7b6052",
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      "description": [
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          "value": "CWE-400"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "n8n is a workflow automation platform. Prior to version 1.99.0, there is a denial of Service vulnerability in /rest/binary-data endpoint when processing empty filesystem URIs (filesystem:// or filesystem-v2://). This allows authenticated attackers to cause service unavailability through malformed filesystem URI requests, effecting the /rest/binary-data endpoint and n8n.cloud instances (confirmed HTTP/2 524 timeout responses). Attackers can exploit this by sending GET requests with empty filesystem URIs (filesystem:// or filesystem-v2://) to the /rest/binary-data endpoint, causing resource exhaustion and service disruption. This issue has been patched in version 1.99.0."
    },
    {
      "lang": "es",
      "value": "n8n es una plataforma de automatización de flujos de trabajo. Antes de la versión 1.99.0, existía una vulnerabilidad de denegación de servicio en el endpoint /rest/binary-data al procesar URIs de sistemas de archivos vacías (filesystem:// o filesystem-v2://). Esto permitía a atacantes autenticados provocar la indisponibilidad del servicio mediante solicitudes de URI de sistemas de archivos malformadas, lo que afectaba al endpoint /rest/binary-data y a las instancias de n8n.cloud (respuestas HTTP/2 con tiempo de espera 524 confirmadas). Los atacantes podían explotar esto enviando solicitudes GET con URIs de sistemas de archivos vacías (filesystem:// o filesystem-v2://) al endpoint /rest/binary-data, lo que provocaba el agotamiento de recursos y la interrupción del servicio. Este problema se ha corregido en la versión 1.99.0."
    }
  ],
  "lastModified": "2026-06-17T09:31:33.457",
  "configurations": [
    {
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        {
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              "versionEndExcluding": "1.99.0"
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  "sourceIdentifier": "security-advisories@github.com"
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