Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5, apps that expose Promise-returning functions to web content via contextBridge may be…
Exact source revision recorded 25 Oct 2026 15:18:57 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-70601
PublishedElectron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5, apps that expose Promise-returning functions to web content via contextBridge may be vulnerable to a context isolation bypass. Untrusted web content could obtain access to the isolated preload world and, through it, every capability the preload script has. In renderers without a sandbox, or with nodeIntegration enabled, this may escalate to Node.js access. Apps are affected if they expose Promise-returning functions via contextBridge, the standard pattern for wrapping ipcRenderer.invoke, in windows that load untrusted content. This issue is fixed in versions 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5.
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-693
Original publisher date fields
published: 2026-08-05T16:17:04.203
lastModified: 2026-10-08T13:54:09.117
11 source CPE criteria · context only
- cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*
- 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:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:beta2:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:beta3:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:beta4:*:*:*:node.js:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
- Source published
- 5 Aug 2026 16:17:04 UTC
- Source modified
- 8 Oct 2026 13:54:09 UTC
- Observed here
- 25 Oct 2026 15:18:57 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · [email protected] · Secondary · 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N