{"id":"GHSA-9f4c-93c8-jc8g","revision":"6d72124eea974d79bea9490657ae5047","records":[{"revision":"6d72124eea974d79bea9490657ae5047","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-9f4c-93c8-jc8g","aliases":["CVE-2026-70608"],"title":"Electron: Sandboxed iframe can bypass the allow-popups restriction via the OpenURL navigation path","description":"### Impact\nA sandboxed iframe without the `allow-popups` keyword could still open a new window (or trigger `setWindowOpenHandler`) with no user interaction, because new-window navigations taking the OpenURL path did not apply the iframe sandbox popup restriction.\n\nApps that embed untrusted content in sandboxed iframes and rely on the absence of `allow-popups` to prevent window creation are affected. Apps that deny window creation in `setWindowOpenHandler`, or that do not embed untrusted content in sandboxed iframes, are not affected.\n\n### Workarounds\nReturn `{ action: 'deny' }` from `setWindowOpenHandler` for any content you do not trust, rather than relying on the iframe sandbox alone.\n\n### Fixed Versions\n* `42.0.1`\n* `41.10.3`\n* `39.8.10`\n\n### For more information\nIf you have any questions or comments about this advisory, email Electron at [security@electronjs.org](mailto:security@electronjs.org)","state":0,"publishedAt":"2026-08-05T17:27:18+00:00","modifiedAt":"2026-08-20T05:15:07.1518205+00:00","affected":[{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"42.0.0-alpha.1"},{"kind":"fixed","version":"42.0.1"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"40.0.0-alpha.1"},{"kind":"fixed","version":"41.10.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"39.8.10"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/electron/electron/security/advisories/GHSA-9f4c-93c8-jc8g","https://github.com/electron/electron/pull/51437","https://github.com/electron/electron/pull/51438","https://github.com/electron/electron/pull/51439","https://github.com/electron/electron/commit/3ff23c52ab364a0afc6ab5bd7851291d3159de57","https://github.com/electron/electron/commit/57cbe329c4ae8aab5ac5ebdcb588adc9a11de0d3","https://github.com/electron/electron/commit/68cf8b7d9122260f6b534a69a82c701a56cf159f","https://github.com/electron/electron","https://github.com/electron/electron/releases/tag/v39.8.10","https://github.com/electron/electron/releases/tag/v41.10.3","https://github.com/electron/electron/releases/tag/v42.0.1"],"sourceUrl":"https://github.com/advisories/GHSA-9f4c-93c8-jc8g","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-9f4c-93c8-jc8g","identifiers":["GHSA-9f4c-93c8-jc8g","CVE-2026-70608"]},"retained":false,"historicalAffected":[]}],"coverage":[]}