github.com
https://github.com/electron/electron CVE-2026-70600
LOW
Electron: Cross-origin iframe can position native autofill popup
Record summary
CVE-2026-70600 has a selected CVSS score of 3.1 (low).
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, the native autofill popup could be positioned by a cross-origin iframe outside that iframe's bounds, over the embedding page's UI, enabling clickjacking or spoofing of trusted UI. Apps are only affected if they embed untrusted content in iframes within windows that also display trusted UI. Apps that do not embed untrusted third-party content are not affected. This issue is fixed in versions 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 6, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
electronBrowse electron / electron | CVE List | < 39.8.8 | affected |
| >= 40.0.0-alpha.1, < 40.9.0 | affected | ||
| >= 41.0.0-alpha.1, < 41.2.1 | affected | ||
| >= 42.0.0-alpha.1, < 42.0.0-beta.3 | affected | ||
electronBrowse npm / electron | GitHub Advisory | Before 39.8.8 · Fixed in 39.8.8 | affected |
| 40.0.0-alpha.1 to < 40.9.1 · Fixed in 40.9.1 | affected | ||
| 41.0.0-alpha.1 to < 41.2.1 · Fixed in 41.2.1 | affected | ||
| 42.0.0-alpha.1 to < 42.0.0-beta.3 · Fixed in 42.0.0-beta.3 | affected |
References
2github.comConfirmation
https://github.com/electron/electron/security/advisories/GHSA-x8rc-wpg4-grpf