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CVE-2026-56847

Full vulnerability record from the local CVENow database.

Description

A flaw in Node.js Permission Model enforcement allows `trace_events.createTracing().enable()` Writes Trace Logs Outside `--allow-fs-write`. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.

Severity
MEDIUM
CVSS score
6.1 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-07-30 06:25:54.953000
Last modified
2026-10-23 22:10:00.160000
View original CVE JSON
{
  "id": "CVE-2026-56847",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-30T06:25:54.953",
  "lastModified": "2026-10-23T22:10:00.160",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw in Node.js Permission Model enforcement allows `trace_events.createTracing().enable()` Writes Trace Logs Outside `--allow-fs-write`.\r\n\r\nThis can lead to confidentiality impact or bypass of the intended security boundary under affected configurations.\r\n\r\nThis vulnerability affects Node.js **22.x**, **24.x**, and **26.x**."
    },
    {
      "lang": "es",
      "value": "Un fallo en la aplicación del Modelo de Permisos de Node.js permite que ’trace_events.createTracing().enable()’ escriba registros de trazas fuera de ’--allow-fs-write’.\n\nEsto puede llevar a un impacto en la confidencialidad o a la elusión del límite de seguridad previsto bajo configuraciones afectadas.\n\nEsta vulnerabilidad afecta a Node.js 22.x, 24.x, y 26.x."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "nodejs",
          "product": "node",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "26.5.0",
              "lessThanOrEqual": "26.5.0",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "24.18.0",
              "lessThanOrEqual": "24.18.0",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "22.23.1",
              "lessThanOrEqual": "22.23.1",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
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          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 4.2
      }
    ],
    "cvssMetricV30": [
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        "source": "[email protected]",
        "type": "Secondary",
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          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-30T12:34:51.815184Z",
          "id": "CVE-2026-56847",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1119"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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  "references": [
    {
      "url": "https://nodejs.org/en/blog/vulnerability/july-2026-security-releases",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}