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CVE-2026-70599GHSA-9PF5-HG6P-4PWP

Electron: Permission Check Handler Receives Main Frame Origin Instead of Requesting Iframe Origin

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 39.8.7, 40.9.0, 41.2.0, 42.0.0-beta.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • electron electron

    fixed in 39.8.7; From 40.0.0-alpha.1 · fixed in 40.9.0; From 41.0.0-alpha.1 · fixed in 41.2.0; From 42.0.0-alpha.1 · fixed in 42.0.0-beta.1

  • electronnpm

    fixed in 39.8.7

  • electronnpm

    From 40.0.0-alpha.1 · fixed in 40.9.0

  • electronnpm

    From 41.0.0-alpha.1 · fixed in 41.2.0

  • electronnpm

    From 42.0.0-alpha.1 · fixed in 42.0.0-beta.1

References 2

GitHub · electron/electron