CVE-2026-73079

{
  "id": "CVE-2026-73079",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-11T16:17:39.713",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sub2API is an AI API gateway platform designed to distribute and manage API quotas from AI product subscriptions. From 0.1.135, to 0.1.168, platform API keys issued to tenants are exchanged for upstream requests made with shared provider accounts (ChatGPT/Codex OAuth, OpenAI platform keys, or an operator-configured base URL) that belong to the operator, not to the caller. The `POST /responses/*subpath` wildcard routes spliced the client-supplied subpath into the upstream URL with no validation. This lets an authenticated tenant relay requests to arbitrary upstream endpoints using pooled account credentials via a path traversal. This vulnerability is fixed in 0.1.169."
    },
    {
      "lang": "es",
      "value": "Sub2API es una plataforma de pasarela de API de IA diseñada para distribuir y gestionar cuotas de API de suscripciones de productos de IA. Desde la versión 0.1.135 hasta la 0.1.168, las claves de API de la plataforma emitidas a los inquilinos se intercambian por solicitudes ascendentes realizadas con cuentas de proveedor compartidas (OAuth de ChatGPT/Codex, claves de plataforma de OpenAI o una URL base configurada por el operador) que pertenecen al operador, no al llamante. Las rutas comodín ’POST /responses/subpath’ empalmaban el subpath proporcionado por el cliente en la URL ascendente sin validación. Esto permite a un inquilino autenticado retransmitir solicitudes a puntos finales ascendentes arbitrarios utilizando credenciales de cuenta agrupadas a través de un salto de ruta. Esta vulnerabilidad está corregida en la versión 0.1.169."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Wei-Shaw",
          "product": "sub2api",
          "versions": [
            {
              "version": ">= 0.1.135, <0.1.169",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
          "baseScore": 8.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-11T16:42:10.888388Z",
          "id": "CVE-2026-73079",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-441"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/Wei-Shaw/sub2api/commit/017f6bbd5edffea0639ef3c84c0391161983f1f3",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Wei-Shaw/sub2api/pull/5137",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Wei-Shaw/sub2api/releases/tag/v0.1.169",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Wei-Shaw/sub2api/security/advisories/GHSA-vrxq-qm4h-6hgg",
      "source": "[email protected]"
    }
  ]
}