{"id":"CVE-2026-70599","revision":null,"records":[{"revision":"3dfe4dedb6c0425a8f0b7c7f986358ba","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-70599","aliases":[],"title":"Electron: Permission Check Handler Receives Main Frame Origin Instead of Requesting Iframe Origin","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, serial-port and media permission checks made from an iframe passed the top-level frame origin to session.setPermissionCheckHandler instead of the requesting iframe origin. Origin-based handler logic could grant a cross-origin iframe device access intended only for the top-level origin. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.","state":0,"publishedAt":"2026-08-05T15:36:02.182+00:00","modifiedAt":"2026-08-05T18:41:57.567+00:00","affected":[{"ecosystem":"Vendor product","name":"electron","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"electron\",\n                    \"product\": \"electron\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 39.8.7\",\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, < 41.2.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 42.0.0-alpha.1, < 42.0.0-beta.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9,"severity":"MEDIUM"}],"references":["https://github.com/electron/electron/security/advisories/GHSA-9pf5-hg6p-4pwp","https://github.com/electron/electron/commit/0cbdf2f0375466d701aa393c92e0ec29eb89ea6c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-70599","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-70599","identifiers":["CVE-2026-70599"]},"retained":false,"historicalAffected":[]},{"revision":"f0c5a258d84c498395152ba2f6409472","observedAt":"2026-11-09T15:06:37.371+00:00","statement":{"source":"euvd","id":"EUVD-2026-53428","aliases":["CVE-2026-70599","GHSA-9pf5-hg6p-4pwp"],"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 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.","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:U/C:H/I:N/A:N","score":5.9,"severity":null}],"references":["https://github.com/electron/electron/security/advisories/GHSA-9pf5-hg6p-4pwp","https://github.com/electron/electron/commit/0cbdf2f0375466d701aa393c92e0ec29eb89ea6c"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-53428","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 5, 2026, 3:36:02 PM","dateUpdated":"Aug 5, 2026, 6:41:57 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-2026-53428","identifiers":["EUVD-2026-53428","CVE-2026-70599","GHSA-9pf5-hg6p-4pwp"]},"retained":false,"historicalAffected":[]},{"revision":"8a59890f880945609a42685c6154caca","observedAt":"2026-10-25T15:18:57.446+00:00","statement":{"source":"nvd","id":"CVE-2026-70599","aliases":[],"title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, serial-port and media permission checks made from an iframe passed the top-level fra…","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, serial-port and media permission checks made from an iframe passed the top-level frame origin to session.setPermissionCheckHandler instead of the requesting iframe origin. Origin-based handler logic could grant a cross-origin iframe device access intended only for the top-level origin. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.","state":0,"publishedAt":"2026-08-05T16:17:03.913+00:00","modifiedAt":"2026-10-08T13:54:19.333+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:U/C:H/I:N/A:N","score":5.9,"severity":"MEDIUM"}],"references":["https://github.com/electron/electron/commit/0cbdf2f0375466d701aa393c92e0ec29eb89ea6c","https://github.com/electron/electron/security/advisories/GHSA-9pf5-hg6p-4pwp"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70599","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-346"],"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":"2026-08-05T16:17:03.913","lastModified":"2026-10-08T13:54:19.333"},"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-2026-70599","identifiers":["CVE-2026-70599"]},"retained":false,"historicalAffected":[]},{"revision":"7416ba302b434b508d8d958b9b1ff6ea","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-9pf5-hg6p-4pwp","aliases":["CVE-2026-70599"],"title":"Electron: Permission Check Handler Receives Main Frame Origin Instead of Requesting Iframe Origin","description":"### Impact\nFor serial-port and media (camera / microphone) permission checks made from an iframe, the `requestingOrigin` passed to `session.setPermissionCheckHandler` was the top-level frame's origin rather than the requesting frame's. Origin-based handler logic could therefore grant a cross-origin iframe device access intended only for the top-level origin.\n\nApps are only affected if they use `setPermissionCheckHandler` with origin-based logic and embed cross-origin iframes with delegated device permissions. Apps that base the decision on `details.securityOrigin`, or that do not embed such iframes, are not affected.\n\n### Workarounds\nCheck `details.securityOrigin` instead of `requestingOrigin` for these permissions, or do not delegate device permissions to untrusted iframes.\n\n### Fixed Versions\n* `42.0.0-beta.1`\n* `41.2.0`\n* `40.9.0`\n* `39.8.7`\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":"2026-08-05T15:36:09+00:00","modifiedAt":"2026-08-05T15:56:01.262988+00:00","affected":[{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"39.8.7"}]}],"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":"41.2.0"}]}],"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.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/electron/electron/security/advisories/GHSA-9pf5-hg6p-4pwp","https://github.com/electron/electron/commit/0cbdf2f0375466d701aa393c92e0ec29eb89ea6c","https://github.com/electron/electron"],"sourceUrl":"https://github.com/advisories/GHSA-9pf5-hg6p-4pwp","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-9pf5-hg6p-4pwp","identifiers":["GHSA-9pf5-hg6p-4pwp","CVE-2026-70599"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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