VYPR
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Medium severity5.9NVD Advisory· Published Aug 5, 2026· Updated Oct 8, 2026

CVE-2026-70599

CVE-2026-70599

Description

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, serial-port and media permission checks made from an iframe passed the top-level frame origin to session.setPermissionCheckHandler instead of the requesting iframe origin. Origin-based handler logic could grant a cross-origin iframe device access intended only for the top-level origin. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
electronnpm
< 39.8.739.8.7
electronnpm
>= 40.0.0-alpha.1, < 40.9.040.9.0
electronnpm
>= 41.0.0-alpha.1, < 41.2.041.2.0
electronnpm
>= 42.0.0-alpha.1, < 42.0.0-beta.142.0.0-beta.1

Affected products

10
  • Electronjs/Electron9 versions
    cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*+ 8 more
    • cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*range: <39.8.7
    • cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:*
    • cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:*
    • cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:*
    • cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:*
    • cpe:2.3:a:electronjs:electron:42.0.0:alpha5:*:*:*:node.js:*:*
    • cpe:2.3:a:electronjs:electron:42.0.0:alpha6:*:*:*:node.js:*:*
    • cpe:2.3:a:electronjs:electron:42.0.0:beta1:*:*:*:node.js:*:*
    • cpe:2.3:a:electronjs:electron:42.0.0:beta2:*:*:*:node.js:*:*
  • Electron PDF/Electron PDFllm-fuzzy
    Range: <39.8.7, <40.9.0, <41.2.0, <42.0.0-beta.1

Patches

Vulnerability mechanics

References

3

News mentions

1