CVEvulnerability

CVE-2026-34780

6.1 MEDIUM Published 2026-04-04 Modified 2026-07-24 Official page ↗
Status
Modified
Published
2026-04-04
Last modified
2026-07-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.3 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected])
6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
8.0 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Weaknesses
CWE-1188, CWE-501, CWE-668

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.

Affected configurations

• electronjs electron (>= 39.0.0 < 39.8.0) • electronjs electron (>= 40.0.0 < 40.7.0) • electronjs electron 41.0.0

Related

Weakness · CWE (3)

  • CWE-1188 Initialization of a Resource with an Insecure Default weakness
  • CWE-501 Trust Boundary Violation weakness
  • CWE-668 Exposure of Resource to Wrong Sphere weakness

References