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CVE-2026-41950

Estado: ModificadaMedia (6)—

Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing.

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)

Langgenius — Dify

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-41950",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-41950",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-05-06T12:52:40.047976Z"
        }
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
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          "confidentialityImpact": "HIGH"
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    "cvssMetricV40": [
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        "cvssData": {
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          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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",
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          "privilegesRequired": "LOW",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
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          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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  "published": "2026-05-05T21:16:23.233",
  "references": [
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      "url": "https://github.com/langgenius/dify/releases/tag/1.14.0",
      "tags": [
        "Release Notes"
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    },
    {
      "url": "https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuid",
      "tags": [
        "Third Party Advisory"
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      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-apps",
      "source": "disclosure@vulncheck.com"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "disclosure@vulncheck.com",
      "description": [
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          "lang": "en",
          "value": "CWE-639"
        }
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  "descriptions": [
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      "lang": "en",
      "value": "Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing."
    },
    {
      "lang": "es",
      "value": "Dify anterior a la versión 1.14.0 contiene una vulnerabilidad de omisión de autorización que permite a usuarios autenticados leer el contenido completo de archivos subidos por otros usuarios dentro del mismo inquilino al proporcionar un UUID de archivo arbitrario en el array de archivos de una solicitud de mensajes de chat. Los atacantes pueden explotar la verificación de permisos insuficiente en los endpoints de mensajes de chat para acceder a archivos sin validación de propiedad, omitiendo la separación de espacios de trabajo y las protecciones de URL firmadas para recuperar contenido de archivos sensibles a través del procesamiento de flujos de trabajo."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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