{"schema":"threatline.record/2","record":{"id":"CVE-2026-102673","aliases":["GHSA-hq2x-r82h-9wj4"],"summary":"Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab","details":"### 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)","categories":["Runtimes & languages"],"product":"electron","vendor":"electron","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:05:37Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron"},"range":"< 41.10.4"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:05:37Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron"},"range":">= 42.0.0-alpha.1, < 42.5.2"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:05:37Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron"},"range":">= 43.0.0-alpha.1, < 43.0.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102673","source_modified_at":"2026-09-30T20:11:08.290Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"electron","vendor":"electron","versions":[{"version":"< 41.10.4","status":"affected"},{"version":">= 42.0.0-alpha.1, < 42.5.2","status":"affected"},{"version":">= 43.0.0-alpha.1, < 43.0.0","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:15:04.710097878Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"41.10.4"}],"type":"SEMVER"}],"versions":[]},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:15:04.710097878Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron"},"ranges":[{"events":[{"introduced":"42.0.0-alpha.1"},{"fixed":"42.5.2"}],"type":"SEMVER"}],"versions":[]},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:15:04.710097878Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron"},"ranges":[{"events":[{"introduced":"43.0.0-alpha.1"},{"fixed":"43.0.0"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:05:37Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron"},"version":"41.10.4"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:05:37Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron"},"version":"42.5.2"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:05:37Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron"},"version":"43.0.0"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:15:04.710097878Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron"},"version":"41.10.4"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:15:04.710097878Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron"},"version":"42.5.2"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-hq2x-r82h-9wj4","source_modified_at":"2026-09-29T18:15:04.710097878Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron"},"version":"43.0.0"}],"cvss":8.2,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00132,"percentile":0.02524,"score_date":"2026-10-23"},"published_at":"2026-09-29T16:38:41.946Z","modified_at":"2026-09-30T20:11:08.290Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-09-29T18:05:37Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-102673","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-09-30T20:11:08.290Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-hq2x-r82h-9wj4","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-09-29T18:15:04.710097878Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102673","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/electron/electron/pull/52133","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/electron/electron/releases/tag/v41.10.4","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/electron/electron/releases/tag/v42.5.2","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/electron/electron/releases/tag/v43.0.0","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-30T19:34:09.694143Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-30T20:11:08.290Z","content_hash":"5b8668820c9ed71e6e43a321161ee186188886fbcf42f32ac2ec3eac8cd1e205"}}