{"cve":"CVE-2026-70607","nvd":{"published":"2026-08-05T17:16:54.687","modified":"2026-10-08T13:53:43.480","status":"Analyzed","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, some window options supplied by web content in the window.open() features string were applied to the new BrowserWindow without an allowlist. Untrusted content could set window options it should not control, including options that cause the main process to access attacker-chosen file or network paths, when untrusted content can call window.open() and the app does not override child window options via setWindowOpenHandler or overrideBrowserWindowOptions. This issue is fixed in 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-20"],"references":["https://github.com/electron/electron/commit/30cf3882de75ee651bd4e5f27002f13fd3d3163a","https://github.com/electron/electron/commit/4eff3dc09e4d1e62d649c5ce9902f532bb7469c7","https://github.com/electron/electron/commit/615d62500fc7732d068274b796c49487e652e90b","https://github.com/electron/electron/commit/fe2e7d0073949b4593b624b93abf1788f5377e55","https://github.com/electron/electron/pull/50946"],"products":["electronjs:electron"],"source":"nvd","synced_at":"2026-10-19T22:47:10.050265369+00:00"},"epss":{"cve":"CVE-2026-70607","score":0.00558,"percentile":0.46216,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-v93f-fgjr-hjrj","url":"https://osv.dev/vulnerability/GHSA-v93f-fgjr-hjrj","summary":"Electron: window.open features string controls some window options considered privileged","modified":"2026-08-05T16:41:06.637803Z","packages":[{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron","ranges":["<39.8.8"],"fixed":["39.8.8"]},{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron","ranges":[">=40.0.0-alpha.1 <40.9.0"],"fixed":["40.9.0"]},{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron","ranges":[">=41.0.0-alpha.1 <41.2.1"],"fixed":["41.2.1"]},{"ecosystem":"npm","name":"electron","purl":"pkg:npm/electron","ranges":[">=42.0.0-alpha.1 <42.0.0-beta.3"],"fixed":["42.0.0-beta.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}