Electron: Context Isolation bypass via contextBridge VideoFrame transfer (electron electron)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.33 % · percentile 26 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
Description
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.
Weaknesses (CWE)
- CWE-668 — Exposure of Resource to Wrong Sphere
- CWE-1188 — Initialization of a Resource with an Insecure Default
- CWE-501 — Trust Boundary Violation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | HIGH 8.0 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | HIGH 8.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 8.0 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-jfqg-hf23-qpw2 — Electron: Context Isolation bypass via contextBridge VideoFrame transfer
European references
- ENISA EUVD · EUVD-2026-18961
- GCVE · GCVE-0-2026-34780
Affected configurations (NVD CPE)
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 39.0.0 < 39.8.0cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 40.0.0 < 40.7.0cpe:2.3:a:electronjs:electron:41.0.0:alpha1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta7:*:*:*:node.js:*:*
Affected products
| Product | Versions |
|---|---|
| electron · electron | affected >= 39.0.0-alpha.1, < 39.8.0 ; affected >= 40.0.0-alpha.1, < 40.7.0 ; affected >= 41.0.0-alpha.1, < 41.0.0-beta.8 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |