High
Security advisory
In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, arbitrary local file read is possible by defining unsafe window options on a child window opened via window.open. As a workaround, ensure you are calling `event.preventDefault()` on all new-window events where the `url` or `options` is not something you expect. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-4075
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:29 UTC · Revision 1
Source evidence
In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, arbitrary local file read is possible by defining unsafe window options on a child window opened via window.open. As a workaround, ensure you are calling `event.preventDefault()` on all new-window events where the `url` or `options` is not something you expect. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.
osv:CVE-2020-4075
Complete source record
{
"id": "71851619492f2891434ef56749b4823d82b37297ad0e3b8a7e6cb2b17ad20e73",
"url": "https://osv.dev/vulnerability/CVE-2020-4075",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-4075",
"summary": "In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, arbitrary local file read is possible by defining unsafe window options on a child window opened via window.open. As a workaround, ensure you are calling `event.preventDefault()` on all new-window events where the `url` or `options` is not something you expect. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.",
"evidence": "osv:CVE-2020-4075",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-4075",
"aliases": [
"CVE-2020-4075",
"GHSA-f9mq-jph6-9mhm"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/electron/electron",
"type": "GIT",
"events": [
{
"introduced": "3083693e67632720b8d12b32d3811be0f4336318"
},
{
"fixed": "0552e0d5de46ffa3b481d741f1db5c779e201565"
},
{
"introduced": "1af3a71fdbb3130fd581b12d8f5a7440e7a04fc6"
},
{
"fixed": "d8f90444aa654f886016a22cb771df99c3616178"
},
{
"introduced": "4da01641ce50cf5a8b6f39717e4c447f89455dfa"
},
{
"last_affected": "4da01641ce50cf5a8b6f39717e4c447f89455dfa"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.2.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.2.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:electronjs:electron:9.0.0:-:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0-NA"
},
{
"last_affected": "9.0.0-NA"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"9.0.0-NA",
"v9.0.0",
"v7.2.3",
"v8.2.3",
"v8.2.2",
"v7.2.2",
"v8.2.1",
"v7.2.1",
"v8.2.0",
"v7.2.0",
"v8.1.1",
"v8.1.0",
"v8.0.3",
"v7.1.14",
"v8.0.2",
"v7.1.13",
"v8.0.1",
"v7.1.12",
"v8.0.0",
"v7.1.11",
"v7.1.10",
"v7.1.9",
"v7.1.8",
"v7.1.7",
"v7.1.6",
"v7.1.5",
"v7.1.4",
"v7.1.3",
"v7.1.2",
"v7.1.1",
"v7.1.0",
"v7.0.1",
"v7.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-4075.json"
}
}
],
"modified": "2026-10-20T10:54:21.885537490Z",
"provider": "osv",
"references": [
"https://github.com/electron/electron/security/advisories/GHSA-f9mq-jph6-9mhm",
"https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:electronjs:electron:9.0.0:beta10:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta11:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta12:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta13:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta14:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta15:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta16:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta17:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta18:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta19:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta1:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta20:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta2:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta3:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta4:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta5:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta6:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta7:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta8:*:*:*:*:*:*",
"cpe:2.3:a:electronjs:electron:9.0.0:beta9:*:*:*:*:*:*"
],
"vendor_product": "electronjs:electron",
"extracted_events": [
{
"range": [
{
"introduced": "9.0.0-beta1"
},
{
"last_affected": "9.0.0-beta1"
},
{
"introduced": "9.0.0-beta10"
},
{
"last_affected": "9.0.0-beta10"
},
{
"introduced": "9.0.0-beta11"
},
{
"last_affected": "9.0.0-beta11"
},
{
"introduced": "9.0.0-beta12"
},
{
"last_affected": "9.0.0-beta12"
},
{
"introduced": "9.0.0-beta13"
},
{
"last_affected": "9.0.0-beta13"
},
{
"introduced": "9.0.0-beta14"
},
{
"last_affected": "9.0.0-beta14"
},
{
"introduced": "9.0.0-beta15"
},
{
"last_affected": "9.0.0-beta15"
},
{
"introduced": "9.0.0-beta16"
},
{
"last_affected": "9.0.0-beta16"
},
{
"introduced": "9.0.0-beta17"
},
{
"last_affected": "9.0.0-beta17"
},
{
"introduced": "9.0.0-beta18"
},
{
"last_affected": "9.0.0-beta18"
},
{
"introduced": "9.0.0-beta19"
},
{
"last_affected": "9.0.0-beta19"
},
{
"introduced": "9.0.0-beta2"
},
{
"last_affected": "9.0.0-beta2"
},
{
"introduced": "9.0.0-beta20"
},
{
"last_affected": "9.0.0-beta20"
},
{
"introduced": "9.0.0-beta3"
},
{
"last_affected": "9.0.0-beta3"
},
{
"introduced": "9.0.0-beta4"
},
{
"last_affected": "9.0.0-beta4"
},
{
"introduced": "9.0.0-beta5"
},
{
"last_affected": "9.0.0-beta5"
},
{
"introduced": "9.0.0-beta6"
},
{
"last_affected": "9.0.0-beta6"
},
{
"introduced": "9.0.0-beta7"
},
{
"last_affected": "9.0.0-beta7"
},
{
"introduced": "9.0.0-beta8"
},
{
"last_affected": "9.0.0-beta8"
},
{
"introduced": "9.0.0-beta9"
},
{
"last_affected": "9.0.0-beta9"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-4075",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 385194,
"published_at": "2020-07-07T00:15:10.513+00:00"
}