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advisory-database[bot]advisory-database[bot]
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Publish Advisories
GHSA-532v-xpq5-8h95 GHSA-9w97-2464-8783 GHSA-mwmh-mq4g-g6gr GHSA-xwr5-m59h-vwqr
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‎advisories/github-reviewed/2026/04/GHSA-532v-xpq5-8h95/GHSA-532v-xpq5-8h95.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-532v-xpq5-8h95",
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"modified": "2026-04-03T02:42:27Z",
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"published": "2026-04-03T02:42:27Z",
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"aliases": [
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"CVE-2026-34774"
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],
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"summary": "Electron: Use-after-free in offscreen child window paint callback",
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"details": "### Impact\nApps that use offscreen rendering and allow child windows via `window.open()` may be vulnerable to a use-after-free. If the parent offscreen `WebContents` is destroyed while a child window remains open, subsequent paint frames on the child dereference freed memory, which may lead to a crash or memory corruption.\n\nApps are only affected if they use offscreen rendering (`webPreferences.offscreen: true`) and their `setWindowOpenHandler` permits child windows. Apps that do not use offscreen rendering, or that deny child windows, are not affected.\n\n### Workarounds\nDeny child window creation from offscreen renderers in your `setWindowOpenHandler`, or ensure child windows are closed before the parent is destroyed.\n\n### Fixed Versions\n* `41.0.0`\n* `40.7.0`\n* `39.8.1`\n\n### For more information\nIf there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "39.8.1"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "40.0.0-alpha.1"
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},
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{
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"fixed": "40.7.0"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "41.0.0-alpha.1"
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},
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{
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"fixed": "41.0.0"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/electron/electron/security/advisories/GHSA-532v-xpq5-8h95"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/electron/electron"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-416"
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],
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"severity": "HIGH",
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"github_reviewed": true,
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"github_reviewed_at": "2026-04-03T02:42:27Z",
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"nvd_published_at": null
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}
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}

‎advisories/github-reviewed/2026/04/GHSA-9w97-2464-8783/GHSA-9w97-2464-8783.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-9w97-2464-8783",
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"modified": "2026-04-03T02:41:23Z",
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"published": "2026-04-03T02:41:23Z",
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"aliases": [
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"CVE-2026-34772"
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],
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"summary": "Electron: Use-after-free in download save dialog callback",
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"details": "### Impact\nApps that allow downloads and programmatically destroy sessions may be vulnerable to a use-after-free. If a session is torn down while a native save-file dialog is open for a download, dismissing the dialog dereferences freed memory, which may lead to a crash or memory corruption.\n\nApps that do not destroy sessions at runtime, or that do not permit downloads, are not affected.\n\n### Workarounds\nAvoid destroying sessions while a download save dialog may be open. Cancel pending downloads before session teardown.\n\n### Fixed Versions\n* `41.0.0-beta.7`\n* `40.7.0`\n* `39.8.0`\n* `38.8.6`\n\n### For more information\nIf there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "38.8.6"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "39.0.0-alpha.1"
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},
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{
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"fixed": "39.8.0"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "40.0.0-alpha.1"
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},
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{
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"fixed": "40.7.0"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "41.0.0-alpha.1"
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},
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{
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"fixed": "41.0.0-beta.7"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/electron/electron/security/advisories/GHSA-9w97-2464-8783"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/electron/electron"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-416"
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],
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"severity": "MODERATE",
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"github_reviewed": true,
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"github_reviewed_at": "2026-04-03T02:41:23Z",
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"nvd_published_at": null
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}
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}

‎advisories/github-reviewed/2026/04/GHSA-mwmh-mq4g-g6gr/GHSA-mwmh-mq4g-g6gr.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-mwmh-mq4g-g6gr",
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"modified": "2026-04-03T02:41:52Z",
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"published": "2026-04-03T02:41:52Z",
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"aliases": [
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"CVE-2026-34773"
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],
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"summary": "Electron: Registry key path injection in app.setAsDefaultProtocolClient on Windows",
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"details": "### Impact\nOn Windows, `app.setAsDefaultProtocolClient(protocol)` did not validate the protocol name before writing to the registry. Apps that pass untrusted input as the protocol name may allow an attacker to write to arbitrary subkeys under `HKCU\\Software\\Classes\\`, potentially hijacking existing protocol handlers.\n\nApps are only affected if they call `app.setAsDefaultProtocolClient()` with a protocol name derived from external or untrusted input. Apps that use a hardcoded protocol name are not affected.\n\n### Workarounds\nValidate the protocol name matches `/^[a-zA-Z][a-zA-Z0-9+.-]*$/` before passing it to `app.setAsDefaultProtocolClient()`.\n\n### Fixed Versions\n* `41.0.0`\n* `40.8.1`\n* `39.8.1`\n* `38.8.6`\n\n### For more information\nIf there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "38.8.6"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "39.0.0-alpha.1"
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},
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{
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"fixed": "39.8.1"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "40.0.0-alpha.1"
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},
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{
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"fixed": "40.8.1"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "electron"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "41.0.0-alpha.1"
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},
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{
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"fixed": "41.0.0"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/electron/electron/security/advisories/GHSA-mwmh-mq4g-g6gr"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/electron/electron"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-20",
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"CWE-74"
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],
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"severity": "MODERATE",
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"github_reviewed": true,
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"github_reviewed_at": "2026-04-03T02:41:52Z",
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"nvd_published_at": null
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}
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}

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