{"id":"GHSA-hq2x-r82h-9wj4","revision":"c86e4c34120e4d0d9f34b5ad8e477a12","records":[{"revision":"c86e4c34120e4d0d9f34b5ad8e477a12","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-hq2x-r82h-9wj4","aliases":["CVE-2026-102673"],"title":"Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab","description":"### Impact\n\nPopups opened from a sandboxed iframe through a link (for example `target=\"_blank\"` or a middle-click) did not inherit the iframe's HTML `sandbox` restrictions. Content that was meant to run sandboxed could open a popup with the embedding app's full origin, gaining access to that origin's cookies, storage, and same-origin scripting.\n\nApps are only affected if they embed untrusted content in iframes sandboxed with `allow-scripts allow-popups`. Apps that do not embed untrusted content in sandboxed iframes are not affected.\n\n### Workarounds\n\nUse `setWindowOpenHandler` on the parent `WebContents` to deny or constrain popups opened from sandboxed frames, or do not apply `allow-popups` to sandboxed iframes that render untrusted content.\n\n### Fixed Versions\n\n* `43.0.0`\n* `42.5.2`\n* `41.10.4`\n\n### For more information\n\nIf you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)","state":0,"publishedAt":"2026-09-29T18:05:34+00:00","modifiedAt":"2026-09-29T18:15:04.7100979+00:00","affected":[{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"41.10.4"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"42.0.0-alpha.1"},{"kind":"fixed","version":"42.5.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"43.0.0-alpha.1"},{"kind":"fixed","version":"43.0.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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-hq2x-r82h-9wj4","https://github.com/electron/electron/pull/52133","https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba","https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69","https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da","https://github.com/electron/electron","https://github.com/electron/electron/releases/tag/v41.10.4","https://github.com/electron/electron/releases/tag/v42.5.2","https://github.com/electron/electron/releases/tag/v43.0.0"],"sourceUrl":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-hq2x-r82h-9wj4","identifiers":["GHSA-hq2x-r82h-9wj4","CVE-2026-102673"]},"retained":false,"historicalAffected":[]}],"coverage":[]}