CVE-2026-70600

Summary

Electron: Cross-origin iframe can position native autofill popup

Severity

low

CVSS

3.1

EPSS

0.2% (p7)

CWE

CWE-1021

Also known as

GHSA-x8rc-wpg4-grpf

Published

2026-08-05

Updated

2026-08-05

Advisory details

Impact

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.

Workarounds

Do not embed untrusted content in iframes inside windows that display trusted UI.

Fixed Versions

• 42.0.0-beta.3
• 41.2.1
• 40.9.0
• 39.8.8

For more information

If you have any questions or comments about this advisory, email Electron at security@electronjs.org

References

• https://github.com/advisories/GHSA-x8rc-wpg4-grpf
• https://github.com/electron/electron/security/advisories/GHSA-x8rc-wpg4-grpf

Related advisories

• CVE-2026-70608 — high · npm/electron
• CVE-2026-54257 — critical · npm/electron
• CVE-2022-4135 — critical · npm/electron
• CVE-2026-70604 — high · npm/electron
• CVE-2026-70601 — high · npm/electron
• CVE-2026-34780 — high · npm/electron
• CVE-2026-34774 — high · npm/electron
• CVE-2026-34771 — high · npm/electron

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