{"id":"GHSA-997q-gvvc-jwmx","revision":null,"records":[{"revision":"b3caa0b2bded414599cc0e7cd855c7cd","observedAt":"2026-10-28T18:46:48.818+00:00","statement":{"source":"cve-program","id":"CVE-2026-114121","aliases":[],"title":"Electron: openExternal permission requests can be attributed to the wrong origin","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5, requests to open external protocol URLs could be attributed to a document other than the one that initiated them, causing the requestingUrl passed to session.setPermissionRequestHandler to identify trusted content for a launch requested by untrusted content. An application that grants openExternal based on the requesting origin and allows untrusted content to open or navigate windows could therefore allow that content to launch an OS-registered external application. 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Prior to versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5, requests to open external protocol URLs could be attributed to a document other than the one that initiated them, causing the requestingUrl passed to session.setPermissionRequestHandler to identify trusted content for a launch requested by untrusted content. An application that grants openExternal based on the requesting origin and allows untrusted content to open or navigate windows could therefore allow that content to launch an OS-registered external application. This issue is fixed in versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5.","state":0,"publishedAt":"2026-10-21T17:18:25.42+00:00","modifiedAt":"2026-10-28T18:17:10.13+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/25057643bf6d9a20bad69e45707551ccf546f5ce","https://github.com/electron/electron/commit/8aa5414f73792ed3b2e3f9ab6391b1832e6dc2c3","https://github.com/electron/electron/commit/92a783952891805f2f82f344c40a6917b98a7d98","https://github.com/electron/electron/commit/e0a20d5277b567aea8603f8e9852a4341407a586","https://github.com/electron/electron/commit/e3a400911084537bce7380ffea8af939572ce8dd","https://github.com/electron/electron/pull/53682","https://github.com/electron/electron/pull/53696","https://github.com/electron/electron/pull/53697","https://github.com/electron/electron/pull/53698","https://github.com/electron/electron/pull/53699","https://github.com/electron/electron/releases/tag/v42.11.3","https://github.com/electron/electron/releases/tag/v43.7.0","https://github.com/electron/electron/releases/tag/v44.3.0","https://github.com/electron/electron/releases/tag/v45.0.0-alpha.5","https://github.com/electron/electron/security/advisories/GHSA-997q-gvvc-jwmx"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-114121","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Undergoing Analysis","weaknesses":["CWE-346"],"productCriteria":[],"sourceDates":{"published":"2026-10-21T17:18:25.420","lastModified":"2026-10-28T18:17:10.130"},"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-2026-114121","identifiers":["CVE-2026-114121"]},"retained":false,"historicalAffected":[]},{"revision":"364976cd36a24b4ca8bbad7cdc157ff2","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-997q-gvvc-jwmx","aliases":["CVE-2026-114121"],"title":"Electron: openExternal permission requests can be attributed to the wrong origin","description":"### Impact\nRequests to open external protocol URLs could be attributed to a document other than the one that asked for them, so the `requestingUrl` passed to `session.setPermissionRequestHandler` was a trusted origin for a launch untrusted content had requested. An origin-based handler could therefore let untrusted content launch an OS-registered external application.\n\nApps are only affected if they grant `openExternal` based on the requesting origin and let untrusted content open or navigate windows. Apps whose permission handler denies `openExternal` for untrusted content are not affected.\n\n### Workarounds\nDeny the `openExternal` permission for untrusted content, or deny the windows it opens with `setWindowOpenHandler`.\n\n### Fixed Versions\n* `45.0.0-alpha.5`\n* `44.3.0`\n* `43.7.0`\n* `42.11.3`\n\n### For more information\nIf you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)","state":0,"publishedAt":"2026-10-22T16:43:59+00:00","modifiedAt":"2026-10-22T17:00:05.1737701+00:00","affected":[{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"42.11.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"43.0.0-alpha.1"},{"kind":"fixed","version":"43.7.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"44.0.0-alpha.1"},{"kind":"fixed","version":"44.3.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"electron","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"45.0.0-alpha.1"},{"kind":"fixed","version":"45.0.0-alpha.5"}]}],"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-997q-gvvc-jwmx","https://nvd.nist.gov/vuln/detail/CVE-2026-114121","https://github.com/electron/electron/pull/53699","https://github.com/electron/electron/pull/53698","https://github.com/electron/electron/pull/53697","https://github.com/electron/electron/pull/53696","https://github.com/electron/electron/pull/53682","https://github.com/electron/electron/commit/e3a400911084537bce7380ffea8af939572ce8dd","https://github.com/electron/electron/commit/e0a20d5277b567aea8603f8e9852a4341407a586","https://github.com/electron/electron/commit/92a783952891805f2f82f344c40a6917b98a7d98","https://github.com/electron/electron/commit/8aa5414f73792ed3b2e3f9ab6391b1832e6dc2c3","https://github.com/electron/electron/commit/25057643bf6d9a20bad69e45707551ccf546f5ce","https://github.com/electron/electron/releases/tag/v42.11.3","https://github.com/electron/electron/releases/tag/v43.7.0","https://github.com/electron/electron/releases/tag/v44.3.0","https://github.com/electron/electron/releases/tag/v45.0.0-alpha.5","https://github.com/electron/electron"],"sourceUrl":"https://github.com/advisories/GHSA-997q-gvvc-jwmx","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-997q-gvvc-jwmx","identifiers":["GHSA-997q-gvvc-jwmx","CVE-2026-114121"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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