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Medium severity5.7NVD Advisory· Published Aug 5, 2026· Updated Oct 8, 2026

CVE-2026-70609

CVE-2026-70609

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, 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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

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

9
  • Electronjs/Electron8 versions
    cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*+ 7 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:*:*
  • Electron PDF/Electron PDFllm-fuzzy
    Range: <39.8.7, <40.9.0, <41.2.0, <42.0.0-beta.1

Patches

Vulnerability mechanics

References

14

News mentions

1