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vuln-cve/data/2026/70xxx/CVE-2026-70603.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-70603",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-04T19:50:27.328Z",
"datePublished": "2026-08-05T15:56:50.574Z",
"dateUpdated": "2026-11-03T22:13:31.217Z"
},
"containers": {
"cna": {
"title": "Electron: shell.openPath path validation bypass via embedded null byte",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"lang": "en",
"description": "CWE-20: Improper Input Validation",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-158",
"lang": "en",
"description": "CWE-158: Improper Neutralization of Null Byte or NUL Character",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/electron/electron/security/advisories/GHSA-5c9j-mhmv-5xgx",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/electron/electron/security/advisories/GHSA-5c9j-mhmv-5xgx"
}
],
"affected": [
{
"vendor": "electron",
"product": "electron",
"versions": [
{
"version": "< 39.8.6",
"status": "affected"
},
{
"version": ">= 40.0.0-alpha.1, < 40.9.0",
"status": "affected"
},
{
"version": ">= 41.0.0-alpha.1, < 41.1.1",
"status": "affected"
},
{
"version": ">= 42.0.0-alpha.1, < 42.0.0-beta.1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-05T15:56:50.574Z"
},
"descriptions": [
{
"lang": "en",
"value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1, shell.openPath() did not reject paths containing embedded null bytes. Apps that perform string-only validation of file paths, for example checking the file extension, before passing them to shell.openPath() could be bypassed, allowing an attacker-controlled path to open a different file than the one that passed validation. Apps are only affected if they pass paths derived from untrusted input to shell.openPath() and rely on string-based validation without a filesystem check. This issue is fixed in versions 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1."
}
],
"source": {
"advisory": "GHSA-5c9j-mhmv-5xgx",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-70603",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-08-06T03:55:28.551971Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-03T22:13:31.217Z"
}
}
]
}
}