FKIE_CVE-2026-47428

Vulnerability from fkie_nvd - Published: 2026-07-14 20:17 - Updated: 2026-07-15 14:18
Severity
9.6 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/vitest-dev/vitest/commit/18af98cee1830604d57f6a02bf28f8067cdffc06
security-advisories@github.comhttps://github.com/vitest-dev/vitest/commit/3514f9fa135c90e1c35754fc4d27c9cf351faafa
security-advisories@github.comhttps://github.com/vitest-dev/vitest/pull/10283
security-advisories@github.comhttps://github.com/vitest-dev/vitest/pull/10285
security-advisories@github.comhttps://github.com/vitest-dev/vitest/releases/tag/v4.1.6
security-advisories@github.comhttps://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3
security-advisories@github.comhttps://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "vitest",
          "vendor": "vitest-dev",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.0.17, \u003c 4.1.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 5.0.0-beta.0, \u003c 5.0.0-beta.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-47428",
  "lastModified": "2026-07-15T14:18:12.963",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47428",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-15T13:20:10.196813Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-14T20:17:02.307",
  "references": [
    {
      "source": "security-advisories@github.com",
      "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.