{"id":"CVE-2026-114121","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-114121","generatedAt":"2026-10-28T01:02:43.750Z","title":"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.","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. This issue is fixed in versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5.","published":"2026-10-21T17:18:25.000Z","lastModified":"2026-10-22T17:29:28.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"},"cwe":["CWE-346"],"affected":[],"epss":{"score":0.00219,"percentile":0.12261,"date":"2026-10-26","history":[{"date":"2026-10-22","score":0.00179,"percentile":0.07086}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-21T17:18:25.000Z","detail":{"score":"5.4","severity":"MEDIUM","publishedAt":"2026-10-21T17:18:25.420Z"},"summary":"New CVE, medium severity (CVSS 5.4)."}],"references":[{"url":"https://github.com/electron/electron/commit/25057643bf6d9a20bad69e45707551ccf546f5ce","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/8aa5414f73792ed3b2e3f9ab6391b1832e6dc2c3","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/92a783952891805f2f82f344c40a6917b98a7d98","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/e0a20d5277b567aea8603f8e9852a4341407a586","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/e3a400911084537bce7380ffea8af939572ce8dd","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/pull/53682","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/pull/53696","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/pull/53697","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/pull/53698","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/pull/53699","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v42.11.3","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v43.7.0","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v44.3.0","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v45.0.0-alpha.5","source":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/security/advisories/GHSA-997q-gvvc-jwmx","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-114121","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}