Electron: openExternal permission requests can be attributed to the wrong origin
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.
CVE-2026-114121
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-114121
electron
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "electron",
"product": "electron",
"versions": [
{
"status": "affected",
"version": "< 42.11.3"
},
{
"status": "affected",
"version": ">= 43.0.0-alpha.1, < 43.7.0"
},
{
"status": "affected",
"version": ">= 44.0.0-alpha.1, < 44.3.0"
},
{
"status": "affected",
"version": ">= 45.0.0-alpha.1, < 45.0.0-alpha.5"
}
]
}
]- Related CVEs
- CVE-2026-114121
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #49275 · Revision 1
- Added to Heist Feed
- Publisher date