8.3

CVE-2026-34780

Electron: Context Isolation bypass via contextBridge VideoFrame transfer

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Electronjs ≫ Electron SwPlatformnode.js Version >= 39.0.0 < 39.8.0
Electronjs ≫ Electron SwPlatformnode.js Version >= 40.0.0 < 40.7.0
Electronjs ≫ Electron Version41.0.0 Updatealpha1 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatealpha2 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatealpha3 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatealpha4 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatealpha5 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatealpha6 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatebeta1 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatebeta2 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatebeta3 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatebeta4 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatebeta5 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatebeta6 SwPlatformnode.js
Electronjs ≫ Electron Version41.0.0 Updatebeta7 SwPlatformnode.js
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.244
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.1 2.8 2.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
security-advisories@github.com 8.3 1.6 6
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 8 1.3 6
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
CWE-1188 Initialization of a Resource with an Insecure Default

The product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure.

CWE-501 Trust Boundary Violation

The product mixes trusted and untrusted data in the same data structure or structured message.

CWE-668 Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

https://bugzilla.redhat.com/show_bug.cgi?id=2455020
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34780.json
https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-34780