CVE-2026-33872

{
  "id": "CVE-2026-33872",
  "sourceIdentifier": "[email protected]",
  "published": "2026-03-27T20:16:34.990",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "elixir-nodejs provides an Elixir API for calling Node.js functions. A vulnerability in versions prior to 3.1.4 results in Cross-User Data Leakage or Information Disclosure due to a race condition in the worker protocol. The lack of request-response correlation creates a \"stale response\" vulnerability. Because the worker does not verify which request a response belongs to, it may return the next available data in the buffer to an unrelated caller. In high-throughput environments where the library processes sensitive user data (e.g., PII, authentication tokens, or private records), a timeout or high concurrent load can cause Data A (belonging to User A) to be returned to User B. This may lead to unauthorized information disclosure that is difficult to trace, as the application may not throw an error but instead provide \"valid-looking\" yet entirely incorrect and private data to the wrong session. The issue is fixed in v3.1.4."
    },
    {
      "lang": "es",
      "value": "elixir-nodejs proporciona una API de Elixir para llamar a funciones de Node.js. Una vulnerabilidad en versiones anteriores a la 3.1.4 resulta en fuga de datos entre usuarios o revelación de información debido a una condición de carrera en el protocolo del trabajador. La falta de correlación solicitud-respuesta crea una vulnerabilidad de ’respuesta obsoleta’. Debido a que el trabajador no verifica a qué solicitud pertenece una respuesta, puede devolver los siguientes datos disponibles en el búfer a un llamador no relacionado. En entornos de alto rendimiento donde la biblioteca procesa datos de usuario sensibles (p. ej., PII, tokens de autenticación o registros privados), un tiempo de espera o una alta carga concurrente puede causar que los Datos A (pertenecientes al Usuario A) sean devueltos al Usuario B. Esto puede llevar a una revelación de información no autorizada que es difícil de rastrear, ya que la aplicación puede no lanzar un error, sino que en su lugar proporciona datos de ’apariencia válida’ pero completamente incorrectos y privados a la sesión incorrecta. El problema se corrige en la v3.1.4."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "revelrylabs",
          "product": "elixir-nodejs",
          "versions": [
            {
              "version": "< 3.1.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/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",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-03-30T18:58:17.269367Z",
          "id": "CVE-2026-33872",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/revelrylabs/elixir-nodejs/issues/100",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/revelrylabs/elixir-nodejs/pull/105",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/revelrylabs/elixir-nodejs/releases/tag/v3.1.4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/revelrylabs/elixir-nodejs/security/advisories/GHSA-rwcr-rpcc-3g9m",
      "source": "[email protected]"
    }
  ]
}