CVE-2026-47429 (GCVE-0-2026-47429)

Vulnerability from cvelistv5 – Published: 2026-07-14 19:28 – Updated: 2026-07-14 19:28
VLAI
Title
Vitest: Arbitrary file can be read and executed when Vitest UI server is listening
Summary
Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\?\\..\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
vitest-dev vitest Affected: < 3.2.5
Affected: >= 4.0.0, < 4.1.0
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{
  "containers": {
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      "affected": [
        {
          "product": "vitest",
          "vendor": "vitest-dev",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.2.5"
            },
            {
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              "version": "\u003e= 4.0.0, \u003c 4.1.0"
            }
          ]
        }
      ],
      "descriptions": [
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          "lang": "en",
          "value": "Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\\\?\\\\..\\\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0."
        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T19:28:08.688Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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        {
          "name": "https://github.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwp",
          "tags": [
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          ],
          "url": "https://github.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwp"
        },
        {
          "name": "https://github.com/vitest-dev/vitest/pull/10445",
          "tags": [
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          ],
          "url": "https://github.com/vitest-dev/vitest/pull/10445"
        },
        {
          "name": "https://github.com/vitest-dev/vitest/pull/9350",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitest-dev/vitest/pull/9350"
        },
        {
          "name": "https://github.com/vitest-dev/vitest/commit/20e00ef7808de6d330c5e2fda530f686e08f1c8d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitest-dev/vitest/commit/20e00ef7808de6d330c5e2fda530f686e08f1c8d"
        },
        {
          "name": "https://github.com/vitest-dev/vitest/commit/af88b1f5d82844a4761ea9a977156c98e2b14ca8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitest-dev/vitest/commit/af88b1f5d82844a4761ea9a977156c98e2b14ca8"
        },
        {
          "name": "https://github.com/vitest-dev/vitest/releases/tag/v3.2.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitest-dev/vitest/releases/tag/v3.2.5"
        },
        {
          "name": "https://github.com/vitest-dev/vitest/releases/tag/v4.1.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitest-dev/vitest/releases/tag/v4.1.0"
        }
      ],
      "source": {
        "advisory": "GHSA-5xrq-8626-4rwp",
        "discovery": "UNKNOWN"
      },
      "title": "Vitest: Arbitrary file can be read and executed when Vitest UI server is listening"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-47429",
    "datePublished": "2026-07-14T19:28:08.688Z",
    "dateReserved": "2026-05-19T19:37:43.527Z",
    "dateUpdated": "2026-07-14T19:28:08.688Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-47429",
      "date": "2026-07-15",
      "epss": "0.01024",
      "percentile": "0.59583"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-47429\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-14T20:17:02.460\",\"lastModified\":\"2026-07-14T20:17:02.460\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\\\\\\\?\\\\\\\\..\\\\\\\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"vitest-dev\",\"product\":\"vitest\",\"versions\":[{\"version\":\"\u003c 3.2.5\",\"status\":\"affected\"},{\"version\":\"\u003e= 4.0.0, \u003c 4.1.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://github.com/vitest-dev/vitest/commit/20e00ef7808de6d330c5e2fda530f686e08f1c8d\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/vitest-dev/vitest/commit/af88b1f5d82844a4761ea9a977156c98e2b14ca8\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/vitest-dev/vitest/pull/10445\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/vitest-dev/vitest/pull/9350\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/vitest-dev/vitest/releases/tag/v3.2.5\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/vitest-dev/vitest/releases/tag/v4.1.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwp\",\"source\":\"security-advisories@github.com\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-07-15T15:04:44+00:00",
      "cve": "CVE-2026-47429",
      "id": "CVE-2026-47429",
      "initial_release_date": "2026-07-14T19:28:08.688000+00:00",
      "product_status:fixed": "3",
      "product_status:known_not_affected": "9",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "vitest: Vitest: Arbitrary code execution and information disclosure via path traversal",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47429.json",
      "version": "3"
    }
  }
}



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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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  • 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.