Disclosure summary
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 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.
Source-reported weakness categories
CWE-693
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST NVD · NVD-CVE-2026-70601
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| electronjs | electron | * · versionStartIncluding: 41.0.0 · versionEndExcluding: 41.2.2 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
Indexed product associations
These cached associations support search and triage. Confirm applicability, platform conditions, and fixed versions in the original record.
| Vendor | Product | Version | Source / relationship |
|---|---|---|---|
| electronjs | electron | * | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
| electronjs | electron | 42.0.0 | nvd / vulnerable |
Original records & references
- NIST NVD record
- CVE Program record
- security-advisories@github.com — Vendor Advisory
Repositories cited by this CVE
The saved CVE record references these repositories. A citation can identify affected software, a fix, or related research; it does not verify exploit code. These citations are separate from automated search matches and local association reviews.
- electron/electron CVE record citation
GitHub repository matches
Repository matches are links and GitHub-supplied metadata only. They are not verified working proof-of-concept code. Each supported query is bounded to ten pages and at most 1,000 indexed results. This is not a complete index of GitHub or public exploit research. Coverage can also be limited by provider availability, rate limits, rejected metadata, incomplete search results, manual review, and the recorded refresh time.
No stored repository matches
Repository discovery has not recorded an update for this CVE yet.
Discovery progress
0 of 3 discovery queries finished. GitHub returned 0 indexed results; 0 malformed or disallowed results were rejected.
No discovery update has been recorded for this CVE.
View all 0 stored repository matches
PUBLISHED 2026-08-05T16:17:04+00:00
MODIFIED 2026-10-08T13:54:09+00:00
INGESTED 2026-10-11T00:25:11+00:00