CVE-2026-34780 (GCVE-0-2026-34780)

Vulnerability from cvelistv5 – Published: 2026-04-04 00:02 – Updated: 2026-06-30 12:09
VLAI
Title
Electron: Context Isolation bypass via contextBridge VideoFrame transfer
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-668 - Exposure of Resource to Wrong Sphere
  • CWE-1188 - Insecure Default Initialization of Resource
  • CWE-501 - Trust Boundary Violation
Assigner
Impacted products
Vendor Product Version
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
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Red Hat Red Hat Build of Podman Desktop     cpe:/a:redhat:podman_desktop:1
Create a notification for this product.
Red Hat Red Hat Build of Podman Desktop - Tech Preview     cpe:/a:redhat:podman_desktop:0
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Show details on NVD website

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