{"id":"CVE-2026-70612","revision":null,"records":[{"revision":"2138719456654701b9d35119b56ad38a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-70612","aliases":[],"title":"Electron: Sandboxed iframes can launch external protocol handlers","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could cause an OS-registered external application to be launched. The frame sandbox state was also not made available to the app permission handlers, affecting apps that render untrusted content in sandboxed iframes and grant the openExternal permission by default when no setPermissionRequestHandler is installed. This issue is fixed in 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.","state":0,"publishedAt":"2026-08-05T17:56:41.464+00:00","modifiedAt":"2026-08-05T19:03:29.121+00:00","affected":[{"ecosystem":"Vendor product","name":"electron","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"electron\",\n                    \"product\": \"electron\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 39.8.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 40.0.0-alpha.1, < 40.9.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 41.0.0-alpha.1, < 41.2.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 42.0.0-alpha.1, < 42.0.0-beta.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/electron/electron/security/advisories/GHSA-p2rr-rvmm-c5fp","https://github.com/electron/electron/pull/50961","https://github.com/electron/electron/pull/50962","https://github.com/electron/electron/pull/50963","https://github.com/electron/electron/pull/50964","https://github.com/electron/electron/commit/08b9d0a220e267d1a2402a44bdd01a2e9aa320b5","https://github.com/electron/electron/commit/2764e4c35168855f614876051823db4f58a3714a","https://github.com/electron/electron/commit/477dcf7afc6550715f9ec5e6f39ee38e5dd7bf39","https://github.com/electron/electron/commit/c39e3d5687d57434c8d5fe814c5152efd2f631c3","https://github.com/electron/electron/releases/tag/v39.8.8","https://github.com/electron/electron/releases/tag/v40.9.0","https://github.com/electron/electron/releases/tag/v41.2.1","https://github.com/electron/electron/releases/tag/v42.0.0-beta.3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-70612","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-70612","identifiers":["CVE-2026-70612"]},"retained":false,"historicalAffected":[]},{"revision":"cbab794cd998438db888a69f713b68c7","observedAt":"2026-11-09T15:06:53.463+00:00","statement":{"source":"euvd","id":"EUVD-2026-53546","aliases":["CVE-2026-70612","GHSA-p2rr-rvmm-c5fp"],"title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox…","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could cause an OS-registered external application to be launched. The frame sandbox state was also not made available to the app permission handlers, affecting apps that render untrusted content in sandboxed iframes and grant the openExternal permission by default when no setPermissionRequestHandler is installed. This issue is fixed in 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","score":5.4,"severity":null}],"references":["https://github.com/electron/electron/security/advisories/GHSA-p2rr-rvmm-c5fp","https://github.com/electron/electron/pull/50961","https://github.com/electron/electron/pull/50962","https://github.com/electron/electron/pull/50963","https://github.com/electron/electron/pull/50964","https://github.com/electron/electron/commit/08b9d0a220e267d1a2402a44bdd01a2e9aa320b5","https://github.com/electron/electron/commit/2764e4c35168855f614876051823db4f58a3714a","https://github.com/electron/electron/commit/477dcf7afc6550715f9ec5e6f39ee38e5dd7bf39","https://github.com/electron/electron/commit/c39e3d5687d57434c8d5fe814c5152efd2f631c3","https://github.com/electron/electron/releases/tag/v39.8.8","https://github.com/electron/electron/releases/tag/v40.9.0","https://github.com/electron/electron/releases/tag/v41.2.1","https://github.com/electron/electron/releases/tag/v42.0.0-beta.3"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-53546","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 5, 2026, 5:56:41 PM","dateUpdated":"Aug 5, 2026, 7:03:29 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-2026-53546","identifiers":["EUVD-2026-53546","CVE-2026-70612","GHSA-p2rr-rvmm-c5fp"]},"retained":false,"historicalAffected":[]},{"revision":"d02b09679b0d4fd7a3fb258c23269151","observedAt":"2026-10-25T15:18:57.446+00:00","statement":{"source":"nvd","id":"CVE-2026-70612","aliases":[],"title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox…","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could cause an OS-registered external application to be launched. The frame sandbox state was also not made available to the app permission handlers, affecting apps that render untrusted content in sandboxed iframes and grant the openExternal permission by default when no setPermissionRequestHandler is installed. This issue is fixed in 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.","state":0,"publishedAt":"2026-08-05T19:17:41.26+00:00","modifiedAt":"2026-10-08T13:49:00.927+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/electron/electron/commit/08b9d0a220e267d1a2402a44bdd01a2e9aa320b5","https://github.com/electron/electron/commit/2764e4c35168855f614876051823db4f58a3714a","https://github.com/electron/electron/commit/477dcf7afc6550715f9ec5e6f39ee38e5dd7bf39","https://github.com/electron/electron/commit/c39e3d5687d57434c8d5fe814c5152efd2f631c3","https://github.com/electron/electron/pull/50961","https://github.com/electron/electron/pull/50962","https://github.com/electron/electron/pull/50963","https://github.com/electron/electron/pull/50964","https://github.com/electron/electron/releases/tag/v39.8.8","https://github.com/electron/electron/releases/tag/v40.9.0","https://github.com/electron/electron/releases/tag/v41.2.1","https://github.com/electron/electron/releases/tag/v42.0.0-beta.3","https://github.com/electron/electron/security/advisories/GHSA-p2rr-rvmm-c5fp"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70612","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-284"],"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":"2026-08-05T19:17:41.260","lastModified":"2026-10-08T13:49:00.927"},"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-2026-70612","identifiers":["CVE-2026-70612"]},"retained":false,"historicalAffected":[]},{"revision":"7cefc09db0cf4150a361e103e50e47ac","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-p2rr-rvmm-c5fp","aliases":["CVE-2026-70612"],"title":"Electron: Sandboxed iframes can launch external protocol handlers","description":"### Impact\nRequests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could cause an OS-registered external application to be launched. The frame's sandbox state was also not made available to the app's permission handlers.\n\nApps are only affected if they render untrusted content in sandboxed iframes and grant the `openExternal` permission (granted by default when no `setPermissionRequestHandler` is installed). Apps whose permission handler denies `openExternal` for untrusted content are not affected.\n\n### Workarounds\nInstall a `setPermissionRequestHandler` that denies the `openExternal` permission for untrusted content.\n\n### Fixed Versions\n* `42.0.0-beta.3`\n* `41.2.1`\n* `40.9.0`\n* `39.8.8`\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":"2026-08-05T17:56:50+00:00","modifiedAt":"2026-08-05T18:11:04.190515+00:00","affected":[{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"39.8.8"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"40.0.0-alpha.1"},{"kind":"fixed","version":"40.9.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"41.0.0-alpha.1"},{"kind":"fixed","version":"41.2.1"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"42.0.0-alpha.1"},{"kind":"fixed","version":"42.0.0-beta.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/electron/electron/security/advisories/GHSA-p2rr-rvmm-c5fp","https://github.com/electron/electron/pull/50961","https://github.com/electron/electron/pull/50962","https://github.com/electron/electron/pull/50963","https://github.com/electron/electron/pull/50964","https://github.com/electron/electron/commit/08b9d0a220e267d1a2402a44bdd01a2e9aa320b5","https://github.com/electron/electron/commit/2764e4c35168855f614876051823db4f58a3714a","https://github.com/electron/electron/commit/477dcf7afc6550715f9ec5e6f39ee38e5dd7bf39","https://github.com/electron/electron/commit/c39e3d5687d57434c8d5fe814c5152efd2f631c3","https://github.com/electron/electron","https://github.com/electron/electron/releases/tag/v39.8.8","https://github.com/electron/electron/releases/tag/v40.9.0","https://github.com/electron/electron/releases/tag/v41.2.1","https://github.com/electron/electron/releases/tag/v42.0.0-beta.3"],"sourceUrl":"https://github.com/advisories/GHSA-p2rr-rvmm-c5fp","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-p2rr-rvmm-c5fp","identifiers":["GHSA-p2rr-rvmm-c5fp","CVE-2026-70612"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T09:26:00.1517867+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T09:26:00.1517867+00:00","lastSuccessAt":"2026-11-11T09:26:00.3919657+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:00.3919664+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-f19af5e22c13aa688d23829fe96c281d0deaf6cf2f8cee6748f54f5a479127b2","complete":true,"records":424021,"lastAttemptAt":"2026-11-11T09:25:54.6180937+00:00","lastSuccessAt":"2026-11-11T09:25:54.5258746+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.6180937+00:00","snapshotPublishedAt":"2026-11-11T09:25:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-c8e1968041a14dd8b1611afe65a44998","complete":false,"records":13758,"lastAttemptAt":"2026-11-11T09:33:03.35373+00:00","lastSuccessAt":"2026-11-11T09:33:03.4156747+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:33:03.4156747+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T09:26:00.1517867+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T09:26:00.1517867+00:00","lastSuccessAt":"2026-11-11T09:26:00.3927797+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:00.3927799+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-304fa97221904da4b3dcd306fc4b8a4b","complete":true,"records":13752,"lastAttemptAt":"2026-11-11T09:26:01.4581358+00:00","lastSuccessAt":"2026-11-11T09:26:01.454+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:01.454+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13812,"expectedIdentifiers":13812,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T09:25:54.9948719+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.9948719+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T09:25:54.7785287+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.7785287+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-2bc186fc4a8179fd66d765079d475b0b8e3af9f89b57dcc310e7773ded48b2cc","complete":true,"records":3088,"lastAttemptAt":"2026-11-11T09:26:00.1096189+00:00","lastSuccessAt":"2026-11-11T09:25:59.9234294+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:00.1096189+00:00","snapshotPublishedAt":"2026-11-11T09:02:55+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-085e065fc9050ae18408f7e722c39653aeb186872334d7b3ec1fcafb7ed43d25","complete":true,"records":231665,"lastAttemptAt":"2026-11-11T09:25:54.8906223+00:00","lastSuccessAt":"2026-11-11T08:27:45.2700102+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.8906223+00:00","snapshotPublishedAt":"2026-11-11T07:32:59+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}