---
id: CVE-2026-114121
title: >-
  Electron: openExternal permission requests can be attributed to the wrong
  origin
summary: >-
  Electron is a framework for writing cross-platform desktop applications using
  JavaScript, HTML and CSS. Prior to versions 42.11.3, 43.7.0, 44.3.0, and
  45.0.0-alpha.5, requests to open external protocol URLs could be attributed to
  a docum…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-346
vendor: electron
product: electron
affected:
  - electron < 42.11.3
  - 'electron >= 43.0.0-alpha.1, < 43.7.0'
  - 'electron >= 44.0.0-alpha.1, < 44.3.0'
  - 'electron >= 45.0.0-alpha.1, < 45.0.0-alpha.5'
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T16:20:07.261Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114121'
references:
  - url: >-
      https://github.com/electron/electron/security/advisories/GHSA-997q-gvvc-jwmx
    label: >-
      https://github.com/electron/electron/security/advisories/GHSA-997q-gvvc-jwmx
  - url: 'https://github.com/electron/electron/pull/53682'
    label: 'https://github.com/electron/electron/pull/53682'
  - url: 'https://github.com/electron/electron/pull/53696'
    label: 'https://github.com/electron/electron/pull/53696'
  - url: 'https://github.com/electron/electron/pull/53697'
    label: 'https://github.com/electron/electron/pull/53697'
  - url: 'https://github.com/electron/electron/pull/53698'
    label: 'https://github.com/electron/electron/pull/53698'
  - url: 'https://github.com/electron/electron/pull/53699'
    label: 'https://github.com/electron/electron/pull/53699'
  - url: >-
      https://github.com/electron/electron/commit/25057643bf6d9a20bad69e45707551ccf546f5ce
    label: >-
      https://github.com/electron/electron/commit/25057643bf6d9a20bad69e45707551ccf546f5ce
  - url: >-
      https://github.com/electron/electron/commit/8aa5414f73792ed3b2e3f9ab6391b1832e6dc2c3
    label: >-
      https://github.com/electron/electron/commit/8aa5414f73792ed3b2e3f9ab6391b1832e6dc2c3
  - url: >-
      https://github.com/electron/electron/commit/92a783952891805f2f82f344c40a6917b98a7d98
    label: >-
      https://github.com/electron/electron/commit/92a783952891805f2f82f344c40a6917b98a7d98
  - url: >-
      https://github.com/electron/electron/commit/e0a20d5277b567aea8603f8e9852a4341407a586
    label: >-
      https://github.com/electron/electron/commit/e0a20d5277b567aea8603f8e9852a4341407a586
  - url: >-
      https://github.com/electron/electron/commit/e3a400911084537bce7380ffea8af939572ce8dd
    label: >-
      https://github.com/electron/electron/commit/e3a400911084537bce7380ffea8af939572ce8dd
  - url: 'https://github.com/electron/electron/releases/tag/v42.11.3'
    label: 'https://github.com/electron/electron/releases/tag/v42.11.3'
  - url: 'https://github.com/electron/electron/releases/tag/v43.7.0'
    label: 'https://github.com/electron/electron/releases/tag/v43.7.0'
  - url: 'https://github.com/electron/electron/releases/tag/v44.3.0'
    label: 'https://github.com/electron/electron/releases/tag/v44.3.0'
  - url: 'https://github.com/electron/electron/releases/tag/v45.0.0-alpha.5'
    label: 'https://github.com/electron/electron/releases/tag/v45.0.0-alpha.5'
tags:
  - cve.org
ingestedAt: '2026-10-21T17:07:51.297Z'
---

## Overview

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5, requests to open external protocol URLs could be attributed to a document other than the one that initiated them, causing the requestingUrl passed to session.setPermissionRequestHandler to identify trusted content for a launch requested by untrusted content. An application that grants openExternal based on the requesting origin and allows untrusted content to open or navigate windows could therefore allow that content to launch an OS-registered external application. This issue is fixed in versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5.

## Affected

- `electron < 42.11.3`
- `electron >= 43.0.0-alpha.1, < 43.7.0`
- `electron >= 44.0.0-alpha.1, < 44.3.0`
- `electron >= 45.0.0-alpha.1, < 45.0.0-alpha.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.