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CVE-2026-47428

Estado: AplazadaCrítica (9.6)—

Vitest is a testing framework powered by Vite. From 4.0.17 until 4.1.6 and 5.0.0-beta.3, Vitest Browser Mode served /__vitest_test__/ with the otelCarrier query parameter inserted directly into an inline module script, allowing a crafted browser-runner URL to execute arbitrary JavaScript in the Vitest server origin and recover VITEST_API_TOKEN for authenticated API calls. This issue is fixed in versions 4.1.6 and 5.0.0-beta.3.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

XSS en parámetro otelCarrier inyectado en script inline permite ejecutar JS arbitrario en origen del servidor Vitest y exfiltrar VITEST_API_TOKEN (credenciales/secretos).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentUser TrainingUser Account ManagementPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over Network

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Vitest.dev — VitestAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-47428",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47428",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-15T13:20:10.196813Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.6,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "vitest-dev",
          "product": "vitest",
          "versions": [
            {
              "status": "affected",
              "version": ">= 4.0.17, < 4.1.6"
            },
            {
              "status": "affected",
              "version": ">= 5.0.0-beta.0, < 5.0.0-beta.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-07-14T20:17:02.307",
  "references": [
    {
      "url": "https://github.com/vitest-dev/vitest/commit/18af98cee1830604d57f6a02bf28f8067cdffc06",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/vitest-dev/vitest/commit/3514f9fa135c90e1c35754fc4d27c9cf351faafa",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/vitest-dev/vitest/pull/10283",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/vitest-dev/vitest/pull/10285",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/vitest-dev/vitest/releases/tag/v4.1.6",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vitest is a testing framework powered by Vite. From 4.0.17 until 4.1.6 and 5.0.0-beta.3, Vitest Browser Mode served /__vitest_test__/ with the otelCarrier query parameter inserted directly into an inline module script, allowing a crafted browser-runner URL to execute arbitrary JavaScript in the Vitest server origin and recover VITEST_API_TOKEN for authenticated API calls. This issue is fixed in versions 4.1.6 and 5.0.0-beta.3."
    }
  ],
  "lastModified": "2026-07-15T20:23:47.313",
  "sourceIdentifier": "security-advisories@github.com"
}