CVE-2026-70601
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5, apps that expose Promise-returning functions to web content via contextBridge may be vulnerable to a context isolation bypass. Untrusted web content could obtain access to the isolated preload world and, through it, every capability the preload script has. In renderers without a sandbox, or with nodeIntegration enabled, this may escalate to Node.js access. Apps are affected if they expose Promise-returning functions via contextBridge, the standard pattern for wrapping ipcRenderer.invoke, in windows that load untrusted content. This issue is fixed in versions 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| electron | electron | < 39.8.9 | affected |
| electron | electron | >= 40.0.0-alpha.1, < 40.9.2 | affected |
| electron | electron | >= 41.0.0-alpha.1, < 41.2.2 | affected |
| electron | electron | >= 42.0.0-alpha.1, < 42.0.0-beta.5 | affected |
Weaknesses
- CWE-693: CWE-693: Protection Mechanism Failure
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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