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CVE-2026-70609

CVE-2026-70609 · Electron: DevTools JavaScript Injection via Unsanitized Dock State Parameter

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.7 · Medium · EPSS 0.5% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • electron

    Versions
    • < 39.8.7: Affected
    • >= 40.0.0-alpha.1, < 40.9.0: Affected
    • >= 41.0.0-alpha.1, < 41.2.0: Affected
    • >= 42.0.0-alpha.1, < 42.0.0-beta.1: Affected

    No fix published

  • electron npm

    Affected ranges
    • SEMVER: < 39.8.7

    Update to 39.8.7

  • electron npm

    Affected ranges
    • SEMVER: ≥ 40.0.0-alpha.1, < 40.9.0

    Update to 40.9.0

  • electron npm

    Affected ranges
    • SEMVER: ≥ 41.0.0-alpha.1, < 41.2.0

    Update to 41.2.0

  • electron npm

    Affected ranges
    • SEMVER: ≥ 42.0.0-alpha.1, < 42.0.0-beta.1

    Update to 42.0.0-beta.1

Original sources

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