CVE-2026-50544

{
  "id": "CVE-2026-50544",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-13T00:17:32.930",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "NortheBridge/luminalshine is a Sunshine-compatible game stream host for Moonlight. Prior to version 26.05.0-rc4, a latent gap exists on a default install, the file at `src/platform/windows/misc.cpp` lives at `C:\\ProgramData\\LuminalShine\\config\\apps.json` and is created by the `SYSTEM` service. Under Windows' default `C:\\ProgramData` inheritance, that gives `BUILTIN\\Users` only Read+Execute — not writable — so the canonical EoP doesn't actually trigger on a vanilla install. Version 26.05.0-rc4 contains a patch for the issue. As a workaround, use default condition DACLs for `ProgramData`."
    },
    {
      "lang": "es",
      "value": "NortheBridge/luminalshine es un host de transmisión de juegos compatible con Sunshine para Moonlight. Antes de la versión 26.05.0-rc4, existe una brecha latente en una instalación predeterminada: el archivo en ’src/platform/windows/misc.cpp’ reside en ’C:\\ProgramData\\LuminalShine\\config\\apps.json’ y es creado por el servicio ’SYSTEM’. Bajo la herencia predeterminada de Windows para ’C:\\ProgramData’, eso otorga a ’BUILTIN\\Users’ solo permisos de Lectura+Ejecución - no de escritura - por lo que la EoP canónica no se activa realmente en una instalación limpia. La versión 26.05.0-rc4 contiene un parche para el problema. Como solución alternativa, utilice DACL de condición predeterminada para ’ProgramData’."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "NortheBridge",
          "product": "luminalshine",
          "versions": [
            {
              "version": "< 26.05.0-rc4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "HIGH",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 0.3,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-14T22:23:37.675303Z",
          "id": "CVE-2026-50544",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-379"
        },
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/NortheBridge/luminalshine/security/advisories/GHSA-52q6-5x97-2747",
      "source": "[email protected]"
    }
  ]
}