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CVE-2026-44884

Estado: AnalizadaMedia (6)—

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint (GET /api/custom_templates/{id}/file) allows any authenticated user to read the file content of any custom template by enumerating sequential integer IDs, bypassing Resource Control access restrictions. Template files may contain environment-specific values such as connection strings, API tokens, or registry credentials that administrators would not expect standard users to read. This vulnerability is fixed in 2.33.8 and 2.39.1.

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)

Portainer — Portainer

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-44884",
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
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              "automatable": "no"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-05-29T13:55:28.420055Z"
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          "valueDensity": "NOT_DEFINED",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  "published": "2026-05-28T22:16:59.677",
  "references": [
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        "Third Party Advisory"
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  "weaknesses": [
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      "description": [
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          "value": "CWE-862"
        }
      ]
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  ],
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      "value": "Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint (GET /api/custom_templates/{id}/file) allows any authenticated user to read the file content of any custom template by enumerating sequential integer IDs, bypassing Resource Control access restrictions. Template files may contain environment-specific values such as connection strings, API tokens, or registry credentials that administrators would not expect standard users to read. This vulnerability is fixed in 2.33.8 and 2.39.1."
    },
    {
      "lang": "es",
      "value": "Portainer Community Edition es una plataforma ligera de entrega de servicios para aplicaciones contenerizadas que puede utilizarse para gestionar entornos Docker, Swarm, Kubernetes y ACI. Desde la versión 2.33.0 hasta antes de la 2.33.8 y la 2.39.1, una vulnerabilidad de autorización faltante en el endpoint de archivo de plantilla personalizada (GET /API/custom_templates/{id}/file) permite a cualquier usuario autenticado leer el contenido del archivo de cualquier plantilla personalizada enumerando IDs enteros secuenciales, eludiendo las restricciones de acceso de Resource Control. Los archivos de plantilla pueden contener valores específicos del entorno, como cadenas de conexión, tokens de API o credenciales de registro que los administradores no esperarían que los usuarios estándar leyeran. Esta vulnerabilidad está corregida en las versiones 2.33.8 y 2.39.1."
    }
  ],
  "lastModified": "2026-07-21T10:10:00.103",
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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