CVE-2026-50143

{
  "id": "CVE-2026-50143",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-18T18:17:53.227",
  "lastModified": "2026-10-22T22:10:00.250",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Apify MCP server enables AI agents to extract data from websites using ready-made scrapers, crawlers, and automation tools available on the Apify Store. Prior to 0.10.11, getActorMCPServerURL in src/mcp/actors.ts concatenates the trusted Actor standby URL with the attacker-controlled webServerMcpPath from an Actor definition without verifying the resulting origin, allowing a malicious Actor publisher to use a userinfo-style authority value to redirect connectMCPClient to a third-party host. The call-actor, fetch-actor-details, and actor-mcp tool-loading paths pass this URL to transports in src/mcp/client.ts that attach the victim Authorization bearer token, exposing the Apify API token and enabling access to Actors, stored data, and billable compute. A victim must invoke or inspect the attacker-controlled Actor. This issue is fixed in version 0.10.11."
    },
    {
      "lang": "es",
      "value": "El servidor Apify MCP permite a los agentes de IA extraer datos de sitios web utilizando raspadores, rastreadores y herramientas de automatización prefabricados disponibles en la Tienda Apify. Antes de la versión 0.10.11, getActorMCPServerURL en src/mcp/actors.ts concatena la URL de reserva de Actor de confianza con la webServerMcpPath controlada por el atacante de una definición de Actor sin verificar el origen resultante, lo que permite a un editor de Actor malicioso usar un valor de autoridad de estilo userinfo para redirigir connectMCPClient a un host de terceros. Las rutas de carga de herramientas call-actor, fetch-actor-details y actor-mcp pasan esta URL a los transportes en src/mcp/client.ts que adjuntan el token portador de autorización de la víctima, exponiendo el token de la API de Apify y permitiendo el acceso a Actores, datos almacenados y cómputo facturable. Una víctima debe invocar o inspeccionar el Actor controlado por el atacante. Este problema está solucionado en la versión 0.10.11."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "apify",
          "product": "apify-mcp-server",
          "versions": [
            {
              "version": "< 0.10.11",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-18T19:30:04.304975Z",
          "id": "CVE-2026-50143",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/apify/apify-mcp-server/commit/ef686d77da3d3c86c30b2ae24218d756aa38e09c",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apify/apify-mcp-server/pull/927",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apify/apify-mcp-server/releases/tag/v0.10.11",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apify/apify-mcp-server/security/advisories/GHSA-6gr2-qh89-hxwm",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apify/apify-mcp-server/security/advisories/GHSA-6gr2-qh89-hxwm",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}