CVSS 3.1
6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2026-34780
Medium (6.1) in electronjs electron. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in electron 39.8.0, 40.7.0, 41.0.0-beta.8.
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From versions 39.0.0-alpha.1 to before 39.8.0, 40.0.0-alpha.1 to before 40.7.0, and 41.0.0-alpha.1 to before 41.0.0-beta.8, apps that pass VideoFrame objects (from the WebCodecs API) across the contextBridge are vulnerable to a context isolation bypass. An attacker who can execute JavaScript in the main world (for example, via XSS) can use a bridged VideoFrame to gain access to the isolated world, including any Node.js APIs exposed to the preload script. Apps are only affected if a preload script returns, resolves, or passes a VideoFrame object to the main world via contextBridge.exposeInMainWorld(). Apps that do not bridge VideoFrame objects are not affected. This issue has been patched in versions 39.8.0, 40.7.0, and 41.0.0-beta.8.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-668, CWE-1188, CWE-501
- Published
- Modified
- Record from
- the NVD, synced
Affected
- electronjs:electron
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-jfqg-hf23-qpw2 | npm | electron | >=39.0.0-alpha.1 <39.8.0 | 39.8.0 |
| GHSA-jfqg-hf23-qpw2 | npm | electron | >=40.0.0-alpha.1 <40.7.0 | 40.7.0 |
| GHSA-jfqg-hf23-qpw2 | npm | electron | >=41.0.0-alpha.1 <41.0.0-beta.8 | 41.0.0-beta.8 |