CVE-2026-70609
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, the mode option of webContents.openDevTools() was not sanitized before use by the DevTools frontend. If an attacker can influence this value, script under their control may run in the DevTools context, which in unsandboxed configurations has access to Node.js, including when untrusted input reaches the mode argument of openDevTools() or untrusted content calls openDevTools() on a webview it embeds. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
- Puntuación base: 5.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.55%
- Percentil entre todas las CVEs puntuadas: 44
- Fecha de la puntuación: 6/10/2026
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).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-94, CWE-116
Referencias
- https://github.com/electron/electron/commit/04614eed17986bddc43eb509ec870424ee6a47d1
- https://github.com/electron/electron/commit/2046ae87731d80a7b535512ae19acb529e10e33b
- https://github.com/electron/electron/commit/969741f9f847c5c583f6bbc63ca22549dbd954ce
- https://github.com/electron/electron/commit/efc4d3c6b6f1c04f658ca0d9d2512dcfe78eb7ba
- https://github.com/electron/electron/pull/50665
- https://github.com/electron/electron/pull/50666
- https://github.com/electron/electron/pull/50667
- https://github.com/electron/electron/pull/50668
- https://github.com/electron/electron/releases/tag/v39.8.7
- https://github.com/electron/electron/releases/tag/v40.9.0
- https://github.com/electron/electron/releases/tag/v41.2.0
- https://github.com/electron/electron/releases/tag/v42.0.0-beta.1
- https://github.com/electron/electron/security/advisories/GHSA-4f78-qhmw-8j8m
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-70609",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-70609",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-08-05T00:00:00+00:00"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.7,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 0.5
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "electron",
"product": "electron",
"versions": [
{
"status": "affected",
"version": "< 39.8.7"
},
{
"status": "affected",
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},
{
"status": "affected",
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{
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"published": "2026-08-05T18:17:15.307",
"references": [
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{
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{
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"source": "security-advisories@github.com"
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{
"url": "https://github.com/electron/electron/releases/tag/v40.9.0",
"source": "security-advisories@github.com"
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{
"url": "https://github.com/electron/electron/releases/tag/v41.2.0",
"source": "security-advisories@github.com"
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{
"url": "https://github.com/electron/electron/releases/tag/v42.0.0-beta.1",
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"weaknesses": [
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"source": "security-advisories@github.com",
"description": [
{
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"value": "CWE-94"
},
{
"lang": "en",
"value": "CWE-116"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, the mode option of webContents.openDevTools() was not sanitized before use by the DevTools frontend. If an attacker can influence this value, script under their control may run in the DevTools context, which in unsandboxed configurations has access to Node.js, including when untrusted input reaches the mode argument of openDevTools() or untrusted content calls openDevTools() on a webview it embeds. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1."
}
],
"lastModified": "2026-09-08T20:44:08.253",
"sourceIdentifier": "security-advisories@github.com"
}