{"id":"CVE-2026-102673","revision":null,"records":[{"revision":"407d33045b274665a6b9e896e6f0026d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102673","aliases":[],"title":"Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target=\"_blank\" or a middle-click, did not receive the inherited HTML sandbox restrictions. An untrusted iframe using the allow-scripts allow-popups configuration could therefore open a popup with the embedding application's full origin, exposing that origin's cookies, storage, and same-origin scripting capabilities. Applications that do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in versions 41.10.4, 42.5.2, and 43.0.0.","state":0,"publishedAt":"2026-09-29T16:38:41.946+00:00","modifiedAt":"2026-09-30T20:11:08.29+00:00","affected":[{"ecosystem":"Vendor product","name":"electron","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"electron\",\n                    \"product\": \"electron\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 41.10.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 42.0.0-alpha.1, < 42.5.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 43.0.0-alpha.1, < 43.0.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","score":8.2,"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/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://www.cve.org/CVERecord?id=CVE-2026-102673","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102673","identifiers":["CVE-2026-102673"]},"retained":false,"historicalAffected":[]},{"revision":"e856dbd7edf1475d9ed256d7b37bc1dd","observedAt":"2026-11-09T05:03:34.251+00:00","statement":{"source":"euvd","id":"EUVD-2026-89078","aliases":["CVE-2026-102673","GHSA-hq2x-r82h-9wj4"],"title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. 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This issue is fixed in versions 41.10.4, 42.5.2, and 43.0.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","score":8.2,"severity":null}],"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/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://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89078","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 29, 2026, 4:38:41 PM","dateUpdated":"Sep 30, 2026, 8:11:08 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-89078","identifiers":["EUVD-2026-89078","CVE-2026-102673","GHSA-hq2x-r82h-9wj4"]},"retained":false,"historicalAffected":[]},{"revision":"99066a58a5a64c398e68810b4a37d568","observedAt":"2026-10-25T04:17:26.915+00:00","statement":{"source":"nvd","id":"CVE-2026-102673","aliases":[],"title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including…","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target=\"_blank\" or a middle-click, did not receive the inherited HTML sandbox restrictions. An untrusted iframe using the allow-scripts allow-popups configuration could therefore open a popup with the embedding application's full origin, exposing that origin's cookies, storage, and same-origin scripting capabilities. Applications that do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in versions 41.10.4, 42.5.2, and 43.0.0.","state":0,"publishedAt":"2026-09-29T17:17:07.487+00:00","modifiedAt":"2026-10-15T14:01:06.497+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","score":8.2,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1,"severity":"MEDIUM"}],"references":["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/pull/52133","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","https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102673","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-346","CWE-693"],"productCriteria":["cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:alpha5:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:alpha6:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:beta1:*:*:*:node.js:*:*","cpe:2.3:a:electronjs:electron:42.0.0:beta2:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-09-29T17:17:07.487","lastModified":"2026-10-15T14:01:06.497"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-102673","identifiers":["CVE-2026-102673"]},"retained":false,"historicalAffected":[]},{"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":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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