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CVE-2026-102676

Estado: En análisisAlta (8.3)—

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, an Electron <webview> guest could enable nodeIntegrationInWorker for its Web Workers even when the unsandboxed embedder had Node.js integration disabled, allowing untrusted guest content to create a Node-enabled worker with more privilege than the embedder granted. Applications that do not enable the <webview> tag or that keep the embedder sandboxed are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.

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.

Webview guest escala privilegios habilitando nodeIntegrationInWorker sin autorización del embedder (CWE-269), requiere interacción del usuario (UI:R). Permite ejecución de código con privilegios elevados.

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

Execution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareThreat Intelligence ProgramRestrict Web-Based Content

Tecnologías afectadas (1)

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

Electron — ElectronAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-102676",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-102676",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-29T19:50:13.282220Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.3,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "electron",
          "product": "electron",
          "versions": [
            {
              "status": "affected",
              "version": "< 41.10.6"
            },
            {
              "status": "affected",
              "version": ">= 42.0.0-alpha.1, < 42.9.2"
            },
            {
              "status": "affected",
              "version": ">= 43.0.0-alpha.1, < 43.4.1"
            },
            {
              "status": "affected",
              "version": ">= 44.0.0-alpha.1, < 44.0.0-beta.5"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-29T17:17:07.973",
  "references": [
    {
      "url": "https://github.com/electron/electron/commit/6462a2e1dc4e6adffd3b7d9b9be1474c45dcbbe2",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/commit/9a675aef8822bae4088567822969f900b3a37671",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/commit/b3ae0aab5cf81c2ed03d04df1ae8e69ecfab7886",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/commit/cd34f335c8664613db5b6e61ae51e2e1846233ae",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/releases/tag/v41.10.6",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/releases/tag/v42.9.2",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/releases/tag/v43.4.1",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/releases/tag/v44.0.0-beta.5",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/electron/electron/security/advisories/GHSA-9qh4-3jw8-366w",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        },
        {
          "lang": "en",
          "value": "CWE-1188"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, an Electron <webview> guest could enable nodeIntegrationInWorker for its Web Workers even when the unsandboxed embedder had Node.js integration disabled, allowing untrusted guest content to create a Node-enabled worker with more privilege than the embedder granted. Applications that do not enable the <webview> tag or that keep the embedder sandboxed are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5."
    }
  ],
  "lastModified": "2026-09-30T19:38:27.293",
  "sourceIdentifier": "security-advisories@github.com"
}